Click to enlargeNW25 Series Hardware

NW25 (KF25) Flange High Vacuum Hardware

Fits NW25 High Vacuum Flange Equivalents:
KF25, KF-25, K100, NW-25, QF25, ISO-QF

Fits NW25 Flange OD 1.57" with
Centering Ring Counter Bore: 1.03"

NW, KF, QF Series High Vacuum Flanges

NW20 (KF20) OD: 1.57" – Centering Ring Counter Bore: 0.86"

NW25 (KF25) OD: 1.57" – Centering Ring Counter Bore: 1.03"

NW20 Flanges Are Sometimes Used Overseas (Uncommon)





NW25 Bulkhead Clamp <br> (NW25-100-BC)
NW25 Bulkhead Clamp <br> (NW25-BC-PK10)
NW25 Bulkhead Clamp
(NW25-100-BC)

Price: $44.43
Sale: $23.00
NW25 Bulkhead Clamp
(NW25-BC-PK10)

Pack of 10
Price: $444.30
Sale: $210.00
CNC Machined Clamp <br> Fits: NW25 <br> (NW25-100-C)
CNC Machined Clamp <br> Fits: NW25 <br> (NW25-C-PK10)
CNC Machined Clamp
Fits: NW25
(NW25-100-C)

$30.00
CNC Machined Clamp
Fits: NW25
(NW25-C-PK10)

Pack of 10
$270.00
Stainless Wing Clamp Fits: NW25 <br> (NW25-100-CSP)
Stainless Wing Clamp Fits: NW25 <br> (NW25-CSP-PK10)
Stainless Wing Clamp Fits: NW25
(NW25-100-CSP)

Price: $53.00
Sale: $27.00
Stainless Wing Clamp Fits: NW25
(NW25-CSP-PK10)

Pack of 10
Price: $530.00
Sale: $243.00
Aluminum Wing Clamp <br> Fits: NW25 <br> (NW25-100-CW)
Aluminum Wing Clamp <br> Fits: NW25 <br> (NW25-CW-PK10)
Aluminum Wing Clamp
Fits: NW25
(NW25-100-CW)

Price: $11.21
Sale: $7.00
Aluminum Wing Clamp
Fits: NW25
(NW25-CW-PK10)

PACK OF 10
Price: $112.10
Sale: $63.00
Toggle Clamp with Cotter Pin <br> Fits: NW25 <br> NW25-100-CTP
Toggle Clamp with Cotter Pin <br> Fits: NW25 <br> NW25-CTP-PK10
Toggle Clamp with Cotter Pin
Fits: NW25
NW25-100-CTP

Price: $26.85
Sale: $23.00
Toggle Clamp with Cotter Pin
Fits: NW25
NW25-CTP-PK10

Pack of 10
Price: $268.50
Sale: $207.00
NW25 Chain Clamp for UHV Applications <br> NW25-100-CC
NW25 HV to UHV Metal Seal Centering Ring Plus Chain Clamp <br> NW25-CC-UHV
NW25 Chain Clamp for UHV Applications
NW25-100-CC

$178.00
NW25 HV to UHV Metal Seal Centering Ring Plus Chain Clamp
NW25-CC-UHV

$226.00
NW25 Horseshoe Spring Clamp with Plastic Knob <br> NW25-100-CHK
NW25 Horseshoe Spring Clamp with Plastic Knob <br> NW25-CHK-PK10
NW25 Horseshoe Spring Clamp with Plastic Knob
NW25-100-CHK

Price: $14.61
Sale: $9.50
NW25 Horseshoe Spring Clamp with Plastic Knob
NW25-CHK-PK10

Pack of 10
$85.50
Aluminum Ratchet Clamp <br> Fits NW25 <br> NW25-100-CRB
Aluminum Ratchet Clamps <br> Fits NW25 <br> NW25-CRB-PK10
Aluminum Ratchet Clamp
Fits NW25
NW25-100-CRB

Price: $44.33
Sale: $21.00
Aluminum Ratchet Clamps
Fits NW25
NW25-CRB-PK10

Pack of 10
Price: $443.30
Sale: $189.00
Stainless Hex Nut CNC Clamp <br> Fits NW25 <br> NW25-100-CSH
Stainless Hex Nut CNC Clamps <br> Fits NW25 <br> NW25-CSH-PK10
Stainless Hex Nut CNC Clamp
Fits NW25
NW25-100-CSH

Price: $125.98
Sale: $54.00
Stainless Hex Nut CNC Clamps
Fits NW25
NW25-CSH-PK10

Pack of 10
Price: $1,259.80
Sale: $486.00
NW25 Centering Ring <br> (NW25-100-SR-V)
NW25 Centering Ring <br> (NW25-100-AR-V)
NW25 Centering Ring
(NW25-100-SR-V)

Stainless - Viton Ring
Price: $11.33
Sale: $6.00
NW25 Centering Ring
(NW25-100-AR-V)

Aluminum - Viton Ring
Price: $9.70
Sale: $5.50
NW25 Centering Ring <br> (NW25-ARB-PK25)
NW25 Centering Rings <br> (NW25-ARV-PK25)
NW25 Centering Ring
(NW25-ARB-PK25)

Aluminum - Buna Ring
Pack of 25!
Price: $156.25
Sale: $85.00
NW25 Centering Rings
(NW25-ARV-PK25)

Aluminum - Viton Ring
Pack of 25!
Price: $242.50
Sale: $131.00
NW25 Centering Ring <br> (NW25-100-SR-B)
NW25 Centering Ring <br> (NW25-100-AR-B-OS)
NW25 Centering Ring
(NW25-100-SR-B)

Stainless - Buna Ring
Price: $10.40
Sale: $5.50
NW25 Centering Ring
(NW25-100-AR-B-OS)

Aluminum - Buna Ring
Price: $6.25
Overstock: $3.50
NW25 Centering Ring <br> (NW25-100-SR-S)
NW25 Centering Ring <br> (NW25-100-AR-S)
NW25 Centering Ring
(NW25-100-SR-S)

Stainless - Silicone Ring
Price: $10.00
Sale: $6.00
NW25 Centering Ring
(NW25-100-AR-S)

Aluminum - Silicone Ring
Price: $7.50
Sale: $6.00
NW25 HV to UHV Metal Seal Centering Ring <br> NW25-100-AR-UHV
NW25 HV to UHV Metal Seal Centering Rings <br> NW25-AR-UHV-PK5
NW25 HV to UHV Metal Seal Centering Ring
NW25-100-AR-UHV

Price: $105.47
Sale: $59.00
NW25 HV to UHV Metal Seal Centering Rings
NW25-AR-UHV-PK5

$279.00
NW25 Centering Ring Without O-Ring <BR> (NW25-100-AR)
NW25 Centering Ring Without O-Ring <br> (NW25-100-SR)
NW25 Centering Ring Without O-Ring
(NW25-100-AR)

Aluminum
$3.00
NW25 Centering Ring Without O-Ring
(NW25-100-SR)

Stainless
$4.00
NW25 Clamp & Ring Assembly <br> (NW25-CW-SRV)
NW25 Plastic Caps <br> (NW25-PC)
NW25 Clamp & Ring Assembly
(NW25-CW-SRV)

Price: $22.54
Sale: $13.00
NW25 Plastic Caps
(NW25-PC)

Price: $3.00
Sale: $0.55
NW25 Centering Ring Sintered Metal Filter <br> (NW25-SMF)
NW25 Mesh Screen Ring Viton O-Ring <BR> NW25-100-SRV-SM
NW25 Centering Ring Sintered Metal Filter
(NW25-SMF)

Price: $78.90
Sale: $59.00
NW25 Mesh Screen Ring Viton O-Ring
NW25-100-SRV-SM

Price: $54.34
Sale: $23.00
NW25 Mesh Screen Ring Buna O-Ring <BR> NW25-100-SRB-SM
NW25 Mesh Screen Ring Silicone O-Ring <BR> NW25-100-SRS-SM
NW25 Mesh Screen Ring Buna O-Ring
NW25-100-SRB-SM

Price: $43.47
Sale: $23.00
NW25 Mesh Screen Ring Silicone O-Ring
NW25-100-SRS-SM

Price: $43.47
Sale: $23.00
NW25 Overpressure & Centering Ring Assembly <br> (NW25-100-SRV-OPR)
NW25 Overpressure Ring <br> (NW25-100-OPR)
NW25 Overpressure & Centering Ring Assembly
(NW25-100-SRV-OPR)

Price: $31.70
Sale: $13.00
NW25 Overpressure Ring
(NW25-100-OPR)

Assembly Required
Price: $8.50
Sale: $5.00
Stainless Adaptive Centering Ring <br> NW20 to NW25 <br> (NW20-25-ASR-V)
Aluminum Adaptive Centering Ring <br> NW20 to NW25 <br> (NW20-25-AAR-V)
Stainless Adaptive Centering Ring
NW20 to NW25
(NW20-25-ASR-V)

Viton O-Ring
Price: $22.00
Sale: $8.50
Aluminum Adaptive Centering Ring
NW20 to NW25
(NW20-25-AAR-V)

Viton O-Ring
Price: $10.00
Sale: $8.50
Stainless Adaptive Ring <br> NW20 to NW25 <br> (NW20-25-ASR-B)
Aluminum Adaptive Centering Ring <br> NW20 to NW25 <br> (NW20-25-AAR-B)
Stainless Adaptive Ring
NW20 to NW25
(NW20-25-ASR-B)

Buna-N O-Ring
Price: $17.00
Sale: $8.50
Aluminum Adaptive Centering Ring
NW20 to NW25
(NW20-25-AAR-B)

Buna-N O-Ring
$8.50
Stainless Adaptive Centering Ring <br> NW20 to NW25 <br> (NW20-25-ASR-S)
Aluminum Adaptive Centering Ring <br> NW20 to NW25 <br> (NW20-25-AAR-S)
Stainless Adaptive Centering Ring
NW20 to NW25
(NW20-25-ASR-S)

Silicone O-Ring
Price: $14.00
Sale: $9.50
Aluminum Adaptive Centering Ring
NW20 to NW25
(NW20-25-AAR-S)

Silicone O-Ring
$9.50
Stainless Adaptive Centering Ring <br> NW20 to NW25 <br> (NW20-25-ASR)
Aluminum Adaptive Centering Ring <br> NW20 to NW25 <br> (NW20-25-AAR)
Stainless Adaptive Centering Ring
NW20 to NW25
(NW20-25-ASR)

NO O-Ring
$8.00
Aluminum Adaptive Centering Ring
NW20 to NW25
(NW20-25-AAR)

NO O-Ring
$8.00
NW25 Viton O-Ring <br> (NW25-100-OV)
NW25 Viton O-Rings <br> (NW25-100-OV10)
NW25 Viton O-Ring
(NW25-100-OV)

Price: $8.00
Sale: $3.00
NW25 Viton O-Rings
(NW25-100-OV10)

10 Pack
Price: $80.00
Sale: $24.00
NW25 Buna-N O-Ring <br> (NW25-100-OB)
NW25 Buna-N O-Rings <br> (NW25-100-OB10)
NW25 Buna-N O-Ring
(NW25-100-OB)

Price: $3.32
Sale: $1.00
NW25 Buna-N O-Rings
(NW25-100-OB10)

10 Pack
Price: $33.20
Sale: $9.00
NW25 Silicone O-Ring <br> (NW25-100-OS)
NW25 Silicone O-Rings <br> (NW25-100-OS10)
NW25 Silicone O-Ring
(NW25-100-OS)

Price: $20.70
Sale: $2.00
NW25 Silicone O-Rings
(NW25-100-OS10)

10 Pack
Price: $207.00
Sale: $16.00
Click to enlarge
NW25 HNBR O-Ring


Contact LDS Vacuum with any questions:
Phone (407)862-4643 via Fax (407)862-8723 or
info@ldsvacuum.com

LDS Vacuum Products is a 100% woman owned company and
certified Woman Owned Small Business (WOSB)
The logos and/or trademarks appearing on this page are not owned by or registered to LDS but, rather, designate products sold by LDS, and are owned and/or registered to the manufacturers or suppliers of the products.
Images Shown May Be For Reference Only

There is a global helium shortage. Each time an MRI is performed, helium is used. Please rethink your helium balloon purchase.