NSN 5331-01-012-2731 · NIIN 010122731 · Part number 44650
Ridge Tool Company · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 50893
Government record, cited
NSN 5331-01-012-2731 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-012-2731. Manufacturer of record part number: 44650.
The O-Ring, cataloged under National Stock Number 5331-01-012-2731, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Ridge Tool Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
5331-01-012-2731
Primary Part Number
44650
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Manufacturer
Ridge Tool Company
Status
ACTIVE
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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6515-01-153-5781E1552POSSIBLE MATCH
ELECTRODE,CAUTERY
Possible match (shared part number)Tyco Healthcare Group Lp Dba Covidien Div Valleylab
5305-01-316-370844650POSSIBLE MATCH
SCREW,MACHINE
Possible match (shared part number)Electro-Tec Corp Dba Moog Inc., Components Group
6515-01-406-0494446.50POSSIBLE MATCH
BONE PLATE
Possible match (shared part number)Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
6515-01-477-616544650POSSIBLE MATCH
CASE,ADMIN,DIAGNOSTIC
Possible match (shared part number)Fleming Industries Inc Dba Iron Duck Division Div Iron Duck
NSN 5331-01-012-2731 is a O-Ring, manufactured by Ridge Tool Company, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-01-012-2731?
NSN 5331-01-012-2731 has 1 manufacturer part number on file: 44650 (Ridge Tool Company).
What NSN replaces 5331-01-012-2731?
5 possible matches (shared part number, not a government interchangeability claim): 6515-01-153-5781, 5305-01-316-3708, 6515-01-406-0494. Verify interchangeability with system specifications before substitution.
What are the specifications of 44650?
Key specifications for 44650: Special Features: CROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200;CONSISTS OF 4 O-RINGS. 0 specifications are documented in the U.S. Government catalog.
Is NSN 5331-01-012-2731 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.