The Diaphragm Assembly, cataloged under National Stock Number 4310-00-795-5663, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Fisher Controls Co Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4310-00-795-5663 |
| Primary Part Number | 1B7980 |
| Item Name | Diaphragm Assembly |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Fisher Controls Co Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF THE FOLLOWING ITEMS; 1B7981 DIAPHRAGM 1; 1B7983 DIAPHRAGM HEAD 1; 1B6665 PUSHER POST 1; 1B7984 LOWER SPRING GUIDE 1; SINGLE STAGE DENNISON HYDRAULIC PRESS WITH RAM LOAD OF 6000 LBS PSI; 0.035 IN. MIN 0.040 IN. MAX THK; 0.125 IN. OPENINGFLAT SURFACE NO BURRS; 30 DEG ANGLE LBS |
| 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 |
|---|---|
| 1B7980 PRIMARY | Fisher Controls Co Inc (USA) |
| 1B7980-000B | Fisher Controls Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 1B7980-900B | C/1 Advisory reference — outside the item-of-supply concept Fisher Controls Co Inc |
| 1B7981-0205 | 5/9 Secondary reference Fisher Controls Co Inc |
NSN 4310-00-795-5663 is a Diaphragm Assembly, manufactured by Fisher Controls Co Inc, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-00-795-5663 has 2 manufacturer part numbers on file: 1B7980 (Fisher Controls Co Inc), 1B7980-000B (Fisher Controls Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-210-1277. Verify interchangeability with system specifications before substitution.
Key specifications for 1B7980: General Characteristics Item Description: CONSISTS OF THE FOLLOWING ITEMS; 1B7981 DIAPHRAGM 1; 1B7983 DIAPHRAGM HEAD 1; 1B6665 PUSHER POST 1; 1B7984 LOWER SPRING GUIDE 1; SINGLE STAGE DENNISON HYDRAULIC PRESS WITH RAM LOAD OF 6000 LBS PSI; 0.035 IN. MIN 0.040 IN. MAX THK; 0.125 IN. OPENINGFLAT SURFACE NO BURRS; 30 DEG ANGLE LBS. 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.