NSN 5331-00-420-6054 · NIIN 004206054 · Part number 1687
Lawler Manufacturing Company, Inc. · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 75545
Government record, cited
NSN 5331-00-420-6054 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-420-6054. Manufacturer of record part number: 1687.
Manufacturer of record: Lawler Manufacturing Company, Inc.
Identification
NSN: 5331-00-420-6054
NIIN: 004206054
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: 1687
Manufacturer: Lawler Manufacturing Company, Inc.
General Description
The O-Ring, cataloged under National Stock Number 5331-00-420-6054, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Lawler Manufacturing Company, Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5331-00-420-6054
Primary Part Number
1687
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Manufacturer
Lawler Manufacturing Company, Inc.
Status
ACTIVE
Cross-Sectional Height
0.125 INCHES NOMINAL IN
Material
RUBBER SYNTHETIC
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5360-00-597-66581687POSSIBLE MATCH
SPRING,HELICAL,COMPRESSION
Possible match (shared part number)Eaton Corp Transmission Div
5950-00-660-73901687POSSIBLE MATCH
TRANSFORMER,RADIO FREQUENCY
Possible match (shared part number)Comspace Corp Munston Electronics Div
5935-00-987-59111270POSSIBLE MATCH
ADAPTER,CONNECTOR
Possible match (shared part number)Pomona Electronics
9905-01-251-76981687POSSIBLE MATCH
PLATE,IDENTIFICATION
Possible match (shared part number)Eaton Aerospace, Llc Dba Jackson South
4730-01-264-1877POSSIBLE MATCH
CLAMP,HOSE
Possible match (shared part number)
2590-01-482-9058POSSIBLE MATCH
CAP,GASKET
Possible match (shared part number)
5340-01-612-75671687POSSIBLE MATCH
BUTTON,PLUG
Possible match (shared part number)Heyco Inc Dba Heyco Products
NSN 5331-00-420-6054 is a O-Ring, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-00-420-6054?
NSN 5331-00-420-6054 has 1 manufacturer part number on file: 1687 (Lawler Manufacturing Company, Inc.).
What NSN replaces 5331-00-420-6054?
8 possible matches (shared part number, not a government interchangeability claim): 5360-00-597-6658, 5950-00-660-7390, 5935-00-987-5911. Verify interchangeability with system specifications before substitution.
What are the specifications of 1687?
Key specifications for 1687: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC. 2 specifications are documented in the U.S. Government catalog.
Is NSN 5331-00-420-6054 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.