The Retainer,module, cataloged under National Stock Number 5845-01-030-5857, is classified within Federal Supply Class 5845 (Underwater Sound Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5845-01-030-5857 |
| Item Name | Retainer,module |
| FSC / FSG | 5845 / 58 — Underwater Sound Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,QQ-A-250/11,ALLOY 6061,T6,6.142 IN. LG,0.500 IN. W,0.062 IN. THK IN |
| Special Test Features | TESTED IN ACCORDANCE W/MIL-Q-21549B-SP24-1 |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SPECIAL TEST FEATURES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 4549181-001 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 4549181-001 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5845-01-030-5857 is a Retainer,module, classified under FSC 5845, Underwater Sound Equipment. Status: active.
Key specifications for 5845-01-030-5857: General Characteristics Item Description: ALUMINUM ALLOY,QQ-A-250/11,ALLOY 6061,T6,6.142 IN. LG,0.500 IN. W,0.062 IN. THK IN; Special Test Features: TESTED IN ACCORDANCE W/MIL-Q-21549B-SP24-1; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SPECIAL TEST FEATURES. 3 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.