The Bomb,penetrating, cataloged under National Stock Number 1325-01-389-4013, is classified within Federal Supply Class 1325 (Bombs) of the Ammunition and Explosives group. The manufacturer of record is National Forge Company. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1325-01-389-4013 |
| Primary Part Number | 9331421-001 |
| Item Name | Bomb,penetrating |
| FSC / FSG | 1325 / 13 — Bombs |
| Manufacturer | National Forge Company |
| Status | ACTIVE |
| General Characteristics Item Description | MODEL NUMBER - BLU-113A(D-1)/B; ITEM CONTENT - INERT FILLED; NOMINAL WEIGHT - 4414.0 POUNDS A |
| Supplementary Features | 5,000LB CLASS AIRBORNE WEAPON DESIGNED TO PENETRATE REINFORCED CONCRETE AND SIMILAR HARD TARGET STRUCTURES;USED FOR TRAINING,SLED TEST EVALUATION AND AS AN INERT WARHEAD IN THE GBU-28A/B FOR FLIGHT TESTING AND EVAL A |
| Dod Ammunition Code | 1325-E989 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| BLU-113A(D-1)/B | Aeronautical and Support Equipment Type/asetds/aflcmc/ezsc (USA) |
| 9331421-001 | Air Armament Center/ En (USA) |
| 9331421-001 PRIMARY | National Forge Company (USA) |
| Reference | Meaning |
|---|---|
| 1325-E989 | 6/9 Informative reference only U.S. Government activity |
NSN 1325-01-389-4013 is a Bomb,penetrating, manufactured by National Forge Company, classified under FSC 1325, Bombs. Status: active.
NSN 1325-01-389-4013 has 3 manufacturer part numbers on file: BLU-113A(D-1)/B (Aeronautical and Support Equipment Type/asetds/aflcmc/ezsc), 9331421-001 (Air Armament Center/ En), 9331421-001 (National Forge Company).
Key specifications for 9331421-001: General Characteristics Item Description: MODEL NUMBER - BLU-113A(D-1)/B; ITEM CONTENT - INERT FILLED; NOMINAL WEIGHT - 4414.0 POUNDS A; Supplementary Features: 5,000LB CLASS AIRBORNE WEAPON DESIGNED TO PENETRATE REINFORCED CONCRETE AND SIMILAR HARD TARGET STRUCTURES;USED FOR TRAINING,SLED TEST EVALUATION AND AS AN INERT WARHEAD IN THE GBU-28A/B FOR FLIGHT TESTING AND EVAL A; Dod Ammunition Code: 1325-E989; Special Features: LENGTH 153.0 IN;DIA 14.5 IN;MOUNTING DATA STANDARD 30.0 IN AIRBORNE STORE SUSPENSION PER MIL-A-8591;FORGED FROM HP9420 STEEL IN. 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.
NSN 1325-01-389-4013 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.