The Diaphragm Expansion, cataloged under National Stock Number 5975-01-191-1845, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5975-01-191-1845 |
| Item Name | Diaphragm Expansion |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Status | ACTIVE |
| General Characteristics Item Description | O/A LG 8.970 IN,O/A WIDTH 7.410 IN,THE DIAPHRAGM SHALL BE CAPABLE OF SEALING FLUOROCHEMICAL FLUID,THE DIFFERENTIAL PRESSURE ACROSS THE SEAL SHALL BE 15 PSID MINIMUM,DIAPHRAGM SHALL BE CAPABLE OF 3000 CYCLES OF OPERATION AT A CYCLE RATE OF CPH MAX WITHOUT EXTERNAL OR INTERNAL LEAKAGE OR RUPTURE,TEMP FROM -54 DEG C TO 125 DEG C IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 585R671H01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5975-01-191-1845 is a Diaphragm Expansion, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
Key specifications for 5975-01-191-1845: General Characteristics Item Description: O/A LG 8.970 IN,O/A WIDTH 7.410 IN,THE DIAPHRAGM SHALL BE CAPABLE OF SEALING FLUOROCHEMICAL FLUID,THE DIFFERENTIAL PRESSURE ACROSS THE SEAL SHALL BE 15 PSID MINIMUM,DIAPHRAGM SHALL BE CAPABLE OF 3000 CYCLES OF OPERATION AT A CYCLE RATE OF CPH MAX WITHOUT EXTERNAL OR INTERNAL LEAKAGE OR RUPTURE,TEMP FROM -54 DEG C TO 125 DEG C IN; End Item Identification: AN/ALQ-131 BLOCK 1. 1 specification is 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.
NSN 5975-01-191-1845 has DEMIL Code B. 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.