The Protector,valve, cataloged under National Stock Number 2990-00-696-0291, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2990-00-696-0291 |
| Primary Part Number | 7538916 |
| Item Name | Protector,valve |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,SAE 1006-1015,0.030 IN.THK,ZINC PLATE,QQ-Z-325,TYPE II,CLASS 3 OR CADMIUM PLATE,QQ-P-416,TYPE II,CLASS 3,6 SIDE HEX 0.570 IN. ACROSS FLATS,0.460 IN. DIA,0.560 IN. H,0.370 IN. LG LIP W/0.062 IN.DIA FASTENING HOLE 0.500 IN. C TO C 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 |
|---|---|
| 7538916 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 913180 | 5/9 Secondary reference Sasco Inc Canadian Div |
| 1408H2 | 3/9 Design control — primary reference Diamond Reo Truck Co |
NSN 2990-00-696-0291 is a Protector,valve, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-696-0291 has 1 manufacturer part number on file: 7538916 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 6150-01-680-7064. Verify interchangeability with system specifications before substitution.
Key specifications for 7538916: General Characteristics Item Description: STEEL,SAE 1006-1015,0.030 IN.THK,ZINC PLATE,QQ-Z-325,TYPE II,CLASS 3 OR CADMIUM PLATE,QQ-P-416,TYPE II,CLASS 3,6 SIDE HEX 0.570 IN. ACROSS FLATS,0.460 IN. DIA,0.560 IN. H,0.370 IN. LG LIP W/0.062 IN.DIA FASTENING HOLE 0.500 IN. C TO C IN. 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.