The Insret Tool,receptacle O-Ring, cataloged under National Stock Number 4921-01-382-9780, is classified within Federal Supply Class 4921 (Torpedo Maintenance, Repair, and Checkout Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is O T S I. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4921-01-382-9780 |
| Primary Part Number | BA38897-04 |
| Item Name | Insret Tool,receptacle O-Ring |
| FSC / FSG | 4921 / 49 — Torpedo Maintenance, Repair, and Checkout Specialized Equipment |
| Manufacturer | O T S I |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,6061-T6,ANODIZED |
| 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 |
|---|---|
| BA38897-04 PRIMARY | O T S I (USA) |
| BA38897-04 | Kaiser Specialty Inc (USA) |
| BA38897-04 | Ordnance Technology Service, Inc. (USA) |
NSN 4921-01-382-9780 is a Insret Tool,receptacle O-Ring, manufactured by O T S I, classified under FSC 4921, Torpedo Maintenance, Repair, and Checkout Specialized Equipment. Status: active.
NSN 4921-01-382-9780 has 3 manufacturer part numbers on file: BA38897-04 (O T S I), BA38897-04 (Kaiser Specialty Inc), BA38897-04 (Ordnance Technology Service, Inc.).
Key specifications for BA38897-04: General Characteristics Item Description: ALUMINUM ALLOY,6061-T6,ANODIZED; Special Features: SHELL SIZE 21; USED TO REMOVE O-RINGS WHEN PERFORMING TORPEDO MAINTENANCE; End Item Identification: ADCAP 48 TORPEDO. 1 specification is 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.