PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2987O-Ring

Lawler Manufacturing Company, Inc. · NSN 5331-00-084-4268 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-084-4268 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-084-4268. Primary manufacturer part number: 2987.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER
  • Cross-Sectional Height: 0.188 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Lawler Manufacturing Company, Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-084-4268, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Lawler Manufacturing Company, Inc.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). 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.

Technical Specifications
ParameterValue
NSN5331-00-084-4268
Primary Part Number2987
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerLawler Manufacturing Company, Inc.
StatusACTIVE
MaterialRUBBER
Cross-Sectional Height0.188 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5310-00-060-2548S12 INTERCHANGEABLE
Washer,flat
Dill Air Controls Products Llc Dba Dill Air Controls Products Llc
2040-00-385-8846 INTERCHANGEABLE
Fitting,exhaust
3120-00-662-8748 INTERCHANGEABLE
Bearing,sleeve
5620-01-062-6292GRZ002987 INTERCHANGEABLE
Glass,gage
Parts Town, Llc
4320-01-165-0793 INTERCHANGEABLE
Pump,centrifugal
5340-01-326-56232-36 INTERCHANGEABLE
Bracket,angle
Vemco Drafting Products Corporation
6540-01-552-969910A-060 INTERCHANGEABLE
Carry Case,ophthalmoscope
Coopersurgical Inc Dba Coopersurgical Products
2540-01-608-65772987 INTERCHANGEABLE
Bracket,vehicular Seat
Bmi Defense Systems, Inc
Cross-Reference Index
Part NumberManufacturer
2987 PRIMARY Lawler Manufacturing Company, Inc. (USA)
Related Parts
5310-00-060-2548INTERCHANGEABLE
WASHER,FLAT
S12
2040-00-385-8846INTERCHANGEABLE
FITTING,EXHAUST
3120-00-662-8748INTERCHANGEABLE
BEARING,SLEEVE
5620-01-062-6292INTERCHANGEABLE
GLASS,GAGE
GRZ002987
4320-01-165-0793INTERCHANGEABLE
PUMP,CENTRIFUGAL
5340-01-326-5623INTERCHANGEABLE
BRACKET,ANGLE
2-36
6540-01-552-9699INTERCHANGEABLE
CARRY CASE,OPHTHALMOSCOPE
10A-060
2540-01-608-6577INTERCHANGEABLE
BRACKET,VEHICULAR SEAT
2987

Frequently Asked Questions

What is NSN 5331-00-084-4268?

NSN 5331-00-084-4268 is a O-Ring, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-084-4268?

NSN 5331-00-084-4268 has 1 cross-referenced part number: 2987 (Lawler Manufacturing Company, Inc.).

What NSN replaces 5331-00-084-4268?

There are 8 known substitutes for 5331-00-084-4268: 5310-00-060-2548, 2040-00-385-8846, 3120-00-662-8748 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2987?

Key specifications for 2987: Material: RUBBER; Cross-Sectional Height: 0.188 INCHES NOMINAL IN. 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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