The Retainer Nut,access Door, cataloged under National Stock Number 1560-00-652-7440, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1560-00-652-7440 |
| Item Name | Retainer Nut,access Door |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,QQ-A-225/6,0.340 IN. LG,0.625-18 UNF3A THD,0.312 IN. MIN,0.315 IN. ACROSS FLATES HEX HOLE THRU CENTER PARALLEL TO LG IN |
| 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 |
|---|---|
| 39-5626 | 5/2 Secondary reference U.S. Government activity |
| 39-5626 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1560-00-652-7440 is a Retainer Nut,access Door, classified under FSC 1560, Airframe Structural Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2990-01-198-6932. Verify interchangeability with system specifications before substitution.
Key specifications for 1560-00-652-7440: General Characteristics Item Description: ALUMINUM ALLOY,QQ-A-225/6,0.340 IN. LG,0.625-18 UNF3A THD,0.312 IN. MIN,0.315 IN. ACROSS FLATES HEX HOLE THRU CENTER PARALLEL TO LG IN. 1 specification is 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.