NSN 5331-01-136-8561 · NIIN 011368561 · Part number 30503
Gil, Inc. · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 55260
Government record, cited
NSN 5331-01-136-8561 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-136-8561. Manufacturer of record part number: 30503.
Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
1 manufacturer part number on file
Manufacturer of record: Gil, Inc.
Identification
NSN: 5331-01-136-8561
NIIN: 011368561
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: 30503
Manufacturer: Gil, Inc.
General Description
The O-Ring, cataloged under National Stock Number 5331-01-136-8561, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Gil, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
5331-01-136-8561
Primary Part Number
30503
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Manufacturer
Gil, Inc.
Status
ACTIVE
Cross-Sectional Height
0.139 INCHES NOMINAL IN
Material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
1620-01-206-781330504POSSIBLE MATCH
GUIDE
Possible match (shared part number)Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5996-01-278-24573050-3POSSIBLE MATCH
AMPLIFIER,RADIO FREQUENCY
Possible match (shared part number)Oai Electronics, Llc Div Oai Electronics
5310-01-281-779730504POSSIBLE MATCH
WASHER,SEAL
Possible match (shared part number)W.w. Grainger, Inc. Div Government Sales Division
3230-01-283-878230503POSSIBLE MATCH
BIT,ROUTER
Possible match (shared part number)Black and Decker Us Inc
C/1Advisory reference — outside the item-of-supply concept
Zf Industrieantriebe Witten Gmbh
Related Parts
1620-01-206-7813POSSIBLE MATCH
GUIDE
30504
5996-01-278-2457POSSIBLE MATCH
AMPLIFIER,RADIO FREQUENCY
3050-3
5310-01-281-7797POSSIBLE MATCH
WASHER,SEAL
30504
3230-01-283-8782POSSIBLE MATCH
BIT,ROUTER
30503
Frequently Asked Questions
What is NSN 5331-01-136-8561?
NSN 5331-01-136-8561 is a O-Ring, manufactured by Gil, Inc., classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-01-136-8561?
NSN 5331-01-136-8561 has 1 manufacturer part number on file: 30503 (Gil, Inc.).
What NSN replaces 5331-01-136-8561?
4 possible matches (shared part number, not a government interchangeability claim): 1620-01-206-7813, 5996-01-278-2457, 5310-01-281-7797. Verify interchangeability with system specifications before substitution.
What are the specifications of 30503?
Key specifications for 30503: Cross-Sectional Height: 0.139 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 2 specifications are documented in the U.S. Government catalog.
Is NSN 5331-01-136-8561 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.