PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3745O-Ring

Husco International Inc · NSN 5331-01-378-7301 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-378-7301 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-378-7301. Primary manufacturer part number: 3745.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Husco International Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-378-7301, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Husco International Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersHusco International Inc (CAGE 93784)
Technical Specifications
ParameterValue
NSN5331-01-378-7301
Primary Part Number3745
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerHusco International Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5330-00-118-6440E20018F001-26 INTERCHANGEABLE
Seal,nonmetallic Strip
Jered Llc
6515-01-139-798900-3745-000-00 INTERCHANGEABLE
Scissors,nasal
Zimmer, Inc. Dba Z Hotel
8105-01-221-3238SP3238 INTERCHANGEABLE
Bag,plastic
Star Poly Bag, Inc.
5895-01-503-80143745 INTERCHANGEABLE
Switching Group,digital Data
Cisco Systems Inc
3040-01-504-38078035409 INTERCHANGEABLE
Connecting Link,rigid
Jlg Industries, Inc.
6640-01-538-03613745 INTERCHANGEABLE
Tube,centrifuge
Corning Incorporated Dba Corning Incorporated
6540-01-555-081403100-U INTERCHANGEABLE
Lamp,halogen,ophthalmosocope Ret
Welch Allyn, Inc.
6130-01-647-55843745 INTERCHANGEABLE
Power Supply
Science, Engineering and Technology Associates Corporation
Cross-Reference Index
Part NumberManufacturer
3745 PRIMARY Husco International Inc (USA)
Related Parts
5330-00-118-6440INTERCHANGEABLE
SEAL,NONMETALLIC STRIP
E20018F001-26
6515-01-139-7989INTERCHANGEABLE
SCISSORS,NASAL
00-3745-000-00
8105-01-221-3238INTERCHANGEABLE
BAG,PLASTIC
SP3238
5895-01-503-8014INTERCHANGEABLE
SWITCHING GROUP,DIGITAL DATA
3745
3040-01-504-3807INTERCHANGEABLE
CONNECTING LINK,RIGID
8035409
6640-01-538-0361INTERCHANGEABLE
TUBE,CENTRIFUGE
3745
6540-01-555-0814INTERCHANGEABLE
LAMP,HALOGEN,OPHTHALMOSOCOPE RET
03100-U
6130-01-647-5584INTERCHANGEABLE
POWER SUPPLY
3745

Frequently Asked Questions

What is NSN 5331-01-378-7301?

NSN 5331-01-378-7301 is a O-Ring, manufactured by Husco International Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-378-7301?

NSN 5331-01-378-7301 has 1 cross-referenced part number: 3745 (Husco International Inc).

What NSN replaces 5331-01-378-7301?

There are 8 known substitutes for 5331-01-378-7301: 5330-00-118-6440, 6515-01-139-7989, 8105-01-221-3238 and 5 more. Verify interchangeability with system specifications before substitution.

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