The Insulator,feedthru, cataloged under National Stock Number 5970-01-291-6995, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Science Applications International Corporation. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-291-6995 |
| Primary Part Number | 21110-1 |
| Item Name | Insulator,feedthru |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Science Applications International Corporation |
| Status | ACTIVE |
| Material Document and Classification | DELRIN ACETAL RESIN MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Material | POLYOXYMETHYLENE, ACETAL HOMOPOLYMER (POM-H) OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 21110-1 PRIMARY | Science Applications International Corporation (USA) |
| Reference | Meaning |
|---|---|
| T537017103 | 5/9 Secondary reference Lockheed Martin Librascope Corporation |
NSN 5970-01-291-6995 is a Insulator,feedthru, manufactured by Science Applications International Corporation, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-291-6995 has 1 manufacturer part number on file: 21110-1 (Science Applications International Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-338-6425, 6130-01-412-7884. Verify interchangeability with system specifications before substitution.
Key specifications for 21110-1: Material Document and Classification: DELRIN ACETAL RESIN MFR REF SINGLE MATERIAL RESPONSE OVERALL; Special Features: FOUR WIRE FEED ADAPTER ASSEMBLY; Material: POLYOXYMETHYLENE, ACETAL HOMOPOLYMER (POM-H) OVERALL. 2 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.