PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40-1004O-Ring

Herley Industries Inc · NSN 5331-01-632-0966 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-632-0966 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-632-0966. Primary manufacturer part number: 40-1004.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Herley Industries Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-632-0966, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Herley Industries Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-632-0966
Primary Part Number40-1004
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerHerley Industries Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5210-00-243-33515210-00-243-3351 INTERCHANGEABLE
Rule,machinist's
General Services Administration Federal Supply Service
5940-00-345-9330401004 INTERCHANGEABLE
Cover,terminal Board
Raytheon Company Dba Raytheon
5315-00-927-2084 INTERCHANGEABLE
Pin,cotter
5910-01-016-2394401004 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Telemechanics Inc
5920-01-108-3206 INTERCHANGEABLE
Fuse,indicator Alarm
5915-01-334-4791401004 INTERCHANGEABLE
Filter,band Suppression
Henderson H F Industries
4820-01-493-175740100-401 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40-1004 PRIMARY Herley Industries Inc (USA)
Related Parts
5210-00-243-3351INTERCHANGEABLE
RULE,MACHINIST'S
5210-00-243-3351
5940-00-345-9330INTERCHANGEABLE
COVER,TERMINAL BOARD
401004
5315-00-927-2084INTERCHANGEABLE
PIN,COTTER
5910-01-016-2394INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
401004
5920-01-108-3206INTERCHANGEABLE
FUSE,INDICATOR ALARM
5915-01-334-4791INTERCHANGEABLE
FILTER,BAND SUPPRESSION
401004
4820-01-493-1757INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40100-401

Frequently Asked Questions

What is NSN 5331-01-632-0966?

NSN 5331-01-632-0966 is a O-Ring, manufactured by Herley Industries Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-632-0966?

NSN 5331-01-632-0966 has 1 cross-referenced part number: 40-1004 (Herley Industries Inc).

What NSN replaces 5331-01-632-0966?

There are 7 known substitutes for 5331-01-632-0966: 5210-00-243-3351, 5940-00-345-9330, 5315-00-927-2084 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40-1004?

Key specifications for 40-1004: Special Features: O-RING WALKER AIR SEP BREATHER ASSEMBLY 47 MLB; 10 INCH OUTER, .210 INCHES X 372 IN; End Item Identification: ENGINE,DIESEL, 2815-01-442-4549. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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