PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

305271O-Ring

Brp Us Inc · NSN 5331-00-757-3865 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-757-3865 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-757-3865. Primary manufacturer part number: 305271.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 1.415 INCHES MINIMUM AND 1.427 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 2 verified cross-references
  • Primary manufacturer: Brp Us Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-757-3865, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Brp Us Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-757-3865
Primary Part Number305271
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerBrp Us Inc
StatusACTIVE
Center Hole Diameter1.415 INCHES MINIMUM AND 1.427 INCHES MAXIMUM IN
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6515-01-521-7138305271 INTERCHANGEABLE
Syringe and Needle,hypodermic
Becton Dickinson and Co Acutecare Div
5998-01-657-647830527-1 INTERCHANGEABLE
Circuit Card Assembly
Science Applications International Corporation
Cross-Reference Index
Part NumberManufacturer
305271 PRIMARY Brp Us Inc (USA)
305271 Outboard Marine Corp Johnson Motors Div (USA)
Related Parts
6515-01-521-7138INTERCHANGEABLE
SYRINGE AND NEEDLE,HYPODERMIC
305271
5998-01-657-6478INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
30527-1

Frequently Asked Questions

What is NSN 5331-00-757-3865?

NSN 5331-00-757-3865 is a O-Ring, manufactured by Brp Us Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-757-3865?

NSN 5331-00-757-3865 has 2 cross-referenced part numbers: 305271 (Brp Us Inc), 305271 (Outboard Marine Corp Johnson Motors Div).

What NSN replaces 5331-00-757-3865?

There are 2 known substitutes for 5331-00-757-3865: 6515-01-521-7138, 5998-01-657-6478. Verify interchangeability with system specifications before substitution.

What are the specifications of 305271?

Key specifications for 305271: Center Hole Diameter: 1.415 INCHES MINIMUM AND 1.427 INCHES MAXIMUM IN; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 3 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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