The O-Ring, cataloged under National Stock Number 5331-01-400-1909, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Greene Tweed & Co Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-400-1909 |
| Primary Part Number | 7327FT-731-5708 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Greene Tweed & Co Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 INTERNATIONAL RUBBER HARDNESS DEGREE SCALE MINIMUM AND 80.0 INTERNATIONAL RUBBER HARDNESS DEGREE SCALE MAXIMUM |
| Material Document and Classification | MIL-R-83248/1, CL1 MIL SPEC SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 2.221 INCHES MINIMUM AND 2.257 INCHES MAXIMUM IN |
| Material | RUBBER |
| 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 |
|---|---|
| 7327FT-731-5708 | Greene Tweed & Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 30900-35 | 3/9 Design control — primary reference Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace |
| 7327FT-731-5708 | 5/9 Secondary reference Palmetto Inc |
NSN 5331-01-400-1909 is a O-Ring, manufactured by Greene Tweed & Co Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-400-1909 has 1 manufacturer part number on file: 7327FT-731-5708 (Greene Tweed & Co Inc).
Key specifications for 7327FT-731-5708: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Hardness Rating: 70.0 INTERNATIONAL RUBBER HARDNESS DEGREE SCALE MINIMUM AND 80.0 INTERNATIONAL RUBBER HARDNESS DEGREE SCALE MAXIMUM; Material Document and Classification: MIL-R-83248/1, CL1 MIL SPEC SINGLE MATERIAL RESPONSE; Center Hole Diameter: 2.221 INCHES MINIMUM AND 2.257 INCHES MAXIMUM IN. 5 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.