The O-Ring, cataloged under National Stock Number 5331-01-273-7270, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Trelleborg Sealing Solutions Germany Gmbh. Government technical data includes 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-273-7270 |
| Primary Part Number | 045-8307 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Trelleborg Sealing Solutions Germany Gmbh |
| Status | ACTIVE |
| Temp Rating | -40.0 CELSIUS AND 135.0 CELSIUS DEGC |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Hardness Rating | 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | ASTM D2000/SAE J200 2BG720B14B34E014EF21EA14 ASSN STD SINGLE MATERIAL RESPONSE |
| Color | BLACK |
| Center Hole Diameter | 3.974 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Reference Number Differentiating Characteristics | AS DIFF BY SPEC K2617 HTE7300 PERFORMANCE RQMT TORNADO ACFT ENGINE MODEL RB199 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 045-8307 | Trelleborg Sealing Solutions Germany Gmbh (DEU) |
| PRP045-8307 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| 120R1 CLASS 1 SIZE 045 | 5/9 Secondary reference U.S. Government activity |
| 045-8307 | 3/1 Design control — primary reference Parker Hannifin Corporation Div O-Ring Division |
| 8307-045 | 5/9 Secondary reference Parker Hannifin Corporation Div O-Ring Division |
| 120R1 CLASS 1 SIZE 045 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 5331-01-273-7270 is a O-Ring, manufactured by Trelleborg Sealing Solutions Germany Gmbh, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-273-7270 has 2 manufacturer part numbers on file: 045-8307 (Trelleborg Sealing Solutions Germany Gmbh), PRP045-8307 (Parker Hannifin Corporation Div O-Ring Division).
Key specifications for 045-8307: Temp Rating: -40.0 CELSIUS AND 135.0 CELSIUS DEGC; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Hardness Rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: ASTM D2000/SAE J200 2BG720B14B34E014EF21EA14 ASSN STD SINGLE MATERIAL RESPONSE. 8 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.