The Filter Element,air Conditioning, cataloged under National Stock Number 4130-00-431-6973, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Technical Wire Products, Llc Dba Twp. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4130-00-431-6973 |
| Primary Part Number | 63-90172 |
| Item Name | Filter Element,air Conditioning |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| Manufacturer | Technical Wire Products, Llc Dba Twp |
| Status | ACTIVE |
| Filtering Media Design | MESH FIRST FILTERING MEDIA RESPONSE |
| Filtering Media Design | EXPANDED SECOND FILTERING MEDIA RESPONSE |
| Body Overall Length | 9.780 INCHES MINIMUM AND 9.840 INCHES MAXIMUM IN |
| Design Type | REUSABLE |
| Style Designator | RECTANGULAR (INCL SQUARE) |
| Surface Treatment | CHROMATE ZINC FILTERING MEDIUM |
| Surface Treatment | CHROMATE ZINC FRAME |
| Material | ALUMINUM FRAME |
| Material | ALUMINUM ALLOY 5056 FILTERING MEDIUM |
| Body Thickness | 0.625 INCHES NOMINAL IN |
| 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 |
|---|---|
| 63-90172 PRIMARY | Technical Wire Products, Llc Dba Twp (USA) |
| Reference | Meaning |
|---|---|
| EMCTECHSCHBEEN104 | 5/1 Secondary reference Technical Wire Products, Llc Dba Twp |
| 401-13992 | 5/9 Secondary reference U.S. Government activity |
NSN 4130-00-431-6973 is a Filter Element,air Conditioning, manufactured by Technical Wire Products, Llc Dba Twp, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
NSN 4130-00-431-6973 has 1 manufacturer part number on file: 63-90172 (Technical Wire Products, Llc Dba Twp).
1 possible match (shared part number, not a government interchangeability claim): 6645-01-421-5667. Verify interchangeability with system specifications before substitution.
Key specifications for 63-90172: Filtering Media Design: MESH FIRST FILTERING MEDIA RESPONSE; Filtering Media Design: EXPANDED SECOND FILTERING MEDIA RESPONSE; Body Overall Length: 9.780 INCHES MINIMUM AND 9.840 INCHES MAXIMUM IN; Design Type: REUSABLE. 10 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.