NSN 5331-00-905-9823 · NIIN 009059823 · Part number A512-7
Parker-Hannifin Corp Div O-Ring Division · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 02697
Government record, cited
NSN 5331-00-905-9823 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-905-9823. Manufacturer of record part number: A512-7.
Cross-Sectional Height: 0.132 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN
Center Hole Diameter: 8.564 INCHES MINIMUM AND 8.712 INCHES MAXIMUM IN
Material: RUBBER NATURAL
2 manufacturer part numbers on file
Manufacturer of record: Parker-Hannifin Corp Div O-Ring Division
Identification
NSN: 5331-00-905-9823
NIIN: 009059823
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: A512-7
Manufacturer: Parker-Hannifin Corp Div O-Ring Division
General Description
The O-Ring, cataloged under National Stock Number 5331-00-905-9823, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
5331-00-905-9823
Primary Part Number
A512-7
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Manufacturer
Parker-Hannifin Corp Div O-Ring Division
Status
ACTIVE
Cross-Sectional Height
0.132 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN
Center Hole Diameter
8.564 INCHES MINIMUM AND 8.712 INCHES MAXIMUM IN
Material
RUBBER NATURAL
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.
5330-01-177-8030A17-16POSSIBLE MATCH
PACKING
Possible match (shared part number)Ortman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc
5915-01-285-2381A-5127POSSIBLE MATCH
FILTER,RADIO FREQUENCY INTERFERE
Possible match (shared part number)The Captor Corporation
NSN 5331-00-905-9823 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-00-905-9823?
NSN 5331-00-905-9823 has 2 manufacturer part numbers on file: 8356526 (U S Army Tank Automotive Command Amsta-Im-Mm), A512-7 (Parker-Hannifin Corp Div O-Ring Division).
What NSN replaces 5331-00-905-9823?
5 possible matches (shared part number, not a government interchangeability claim): 5330-01-177-8030, 5915-01-285-2381, 8455-01-528-9639. Verify interchangeability with system specifications before substitution.
What are the specifications of A512-7?
Key specifications for A512-7: Cross-Sectional Height: 0.132 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN; Center Hole Diameter: 8.564 INCHES MINIMUM AND 8.712 INCHES MAXIMUM IN; Material: RUBBER NATURAL. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5331-00-905-9823 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.