The Packing Nut,stuffing Tube, cataloged under National Stock Number 5975-01-323-2031, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5975-01-323-2031 |
| Item Name | Packing Nut,stuffing Tube |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Status | ACTIVE |
| Width Across Flats | 1.375 INCHES NOMINAL IN |
| Thread Relief Length | 0.188 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Style Designator | PLAIN-W/THREAD RELIEF |
| Material Document and Classification | QQ-C-465 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.250 INCHES IN |
| Head Length | 0.188 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Bore Diameter | 0.671 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| M24231/9-014 | 2/2 Government specification standardization U.S. Government activity |
| MIL-C-24231/9 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-24231/9 | 4/1 Identification reference U.S. Government activity |
NSN 5975-01-323-2031 is a Packing Nut,stuffing Tube, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5935-01-323-7118. Verify interchangeability with system specifications before substitution.
Key specifications for 5975-01-323-2031: Width Across Flats: 1.375 INCHES NOMINAL IN; Thread Relief Length: 0.188 INCHES NOMINAL IN; Thread Length: 0.500 INCHES NOMINAL IN; Style Designator: PLAIN-W/THREAD RELIEF. 12 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.