PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4400Cap,pneumatic Valve

Schrader-Bridgeport International Inc Dba Schrader Automotive · NSN 2640-00-255-9989 · FSC 2640 · No Item Name Available
Verified by PartsTable
NSN 2640-00-255-9989 — this item is cataloged by the U.S. Government under National Stock Number 2640-00-255-9989. Primary manufacturer part number: 4400.
Features
  • Cap,pneumatic Valve — FSC 2640
  • Thread Direction: RIGHT-HAND INTERNAL
  • Thread Series Designator: UNS INTERNAL
  • Connection Style: PLAIN (OPTIONAL END)
  • Thread Quantity Per Inch: 32 INTERNAL
  • Nominal Thread Size: 0.307 INCHES INTERNAL IN
  • 4 verified cross-references
  • Primary manufacturer: Schrader-Bridgeport International Inc Dba Schrader Automotive
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Cap,pneumatic Valve, cataloged under National Stock Number 2640-00-255-9989, is classified within Federal Supply Class 2640 (No Item Name Available) of the Tires and Tubes group. The primary manufacturer of record is Schrader-Bridgeport International Inc Dba Schrader Automotive. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2640-00-255-9989
Primary Part Number4400
Item NameCap,pneumatic Valve
FSC / FSG2640 / 26 — No Item Name Available
ManufacturerSchrader-Bridgeport International Inc Dba Schrader Automotive
StatusCANCELLED
Thread DirectionRIGHT-HAND INTERNAL
Thread Series DesignatorUNS INTERNAL
Connection StylePLAIN (OPTIONAL END)
Thread Quantity Per Inch32 INTERNAL
Nominal Thread Size0.307 INCHES INTERNAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-100-0665645 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5120-00-278-106528820 INTERCHANGEABLE
Vise,bench and Pipe
Wilton Corp Wilton Tool Div
5325-00-286-8045 INTERCHANGEABLE
Eyelet,metallic
5360-00-292-4101645 INTERCHANGEABLE
Spring,helical,compression
Struthers Wells Corp
6625-00-407-6237SCC25816 INTERCHANGEABLE
Electromagnetic Act
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4510-00-421-3913 INTERCHANGEABLE
Holder,water Tumbler
6625-00-538-6482 INTERCHANGEABLE
Probe,test
6685-00-878-7161164451 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-951-5971165660A INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
5985-01-033-9348645 INTERCHANGEABLE
Horn,waveguide
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
Cross-Reference Index
Part NumberManufacturer
904750-1 Raytheon Company Dba Raytheon (USA)
645 Eaton Corporation Dba Air Controls Division Div Air Controls Division (USA)
4400 PRIMARY Schrader-Bridgeport International Inc Dba Schrader Automotive (USA)
4400 Scovill Inc Schrader Bellows Div (USA)
Related Parts
3110-00-100-0665INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
645
5120-00-278-1065INTERCHANGEABLE
VISE,BENCH AND PIPE
28820
5325-00-286-8045INTERCHANGEABLE
EYELET,METALLIC
5360-00-292-4101INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
645
6625-00-407-6237INTERCHANGEABLE
ELECTROMAGNETIC ACT
SCC25816
4510-00-421-3913INTERCHANGEABLE
HOLDER,WATER TUMBLER
6625-00-538-6482INTERCHANGEABLE
PROBE,TEST
6685-00-878-7161INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164451
6685-00-951-5971INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
165660A
5985-01-033-9348INTERCHANGEABLE
HORN,WAVEGUIDE
645
5136-01-046-8857INTERCHANGEABLE
DIE,THREAD CUTTING
23312
6685-01-154-0194INTERCHANGEABLE
THERMOSTAT,FLOW CONTROL
HH29AA050

Frequently Asked Questions

What is NSN 2640-00-255-9989?

NSN 2640-00-255-9989 is a Cap,pneumatic Valve, manufactured by Schrader-Bridgeport International Inc Dba Schrader Automotive, classified under FSC 2640 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2640-00-255-9989?

NSN 2640-00-255-9989 has 4 cross-referenced part numbers: 904750-1 (Raytheon Company Dba Raytheon), 645 (Eaton Corporation Dba Air Controls Division Div Air Controls Division), 4400 (Schrader-Bridgeport International Inc Dba Schrader Automotive), 4400 (Scovill Inc Schrader Bellows Div).

What NSN replaces 2640-00-255-9989?

There are 12 known substitutes for 2640-00-255-9989: 3110-00-100-0665, 5120-00-278-1065, 5325-00-286-8045 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4400?

Key specifications for 4400: Special Features: WITH BOTH ENDS THREADED ONE END FOR CAP AND OTHER FOR DEFLATING BY INSTALLATION; Thread Direction: RIGHT-HAND INTERNAL; Thread Series Designator: UNS INTERNAL; Connection Style: PLAIN (OPTIONAL END). 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2640-00-255-9989 still in active supply?

NSN 2640-00-255-9989 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com