The Mounting Base,tie Down,electrica, cataloged under National Stock Number 5975-01-181-8328, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5975-01-181-8328 |
| Primary Part Number | 639AS4946 |
| Item Name | Mounting Base,tie Down,electrica |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 639AS4946 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 639AS4946 PRIMARY | Naval Air Warfare Center Weapons Div (USA) |
| Reference | Meaning |
|---|---|
| INHOUSE CAGE 12934 K | 5/9 Secondary reference Naval Air Warfare Center Weapons Div |
NSN 5975-01-181-8328 is a Mounting Base,tie Down,electrica, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-01-181-8328 has 2 manufacturer part numbers on file: 639AS4946 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 639AS4946 (Naval Air Warfare Center Weapons Div).
Key specifications for 639AS4946: Criticality Code Justification: FEAT; Special Features: ITEMS ARE BEING CODED AS CRITICAL TO INSURE SOURCE INSPECTION WILL BE PERFORMED AT THE POINT OF MANUFACTURE, PRIOR TO MATERIAL RECEIPT BY THE US NAVY OR OTHER DOD COMPONENTS. THESE ITEMS ARE PIECE PARTS OR END ITEMS IN SUPPORT OF VITAL MILITARY HARDWARE NECESSARY TO SUSTAIN THE SUCCESSFUL MISSION OF THE SHIPS, SUBMARINES, AND SHORE STATIONS OF THE US NAVY. CRITICAL FEATURES INCLUDING, BUT NOT LIMITED TO, DIMENSIONS, TOLERANCES/CLEARANCES, ELECTRONIC CHARACTERISTICS, AND METALLURGICAL PROPERTIES WILL BESPECIFIED FOR GOVERNMENT Q AR (QUALITY ASSURANCE REPRESENTATIVES) TO INSURE THE HIGHEST POSSIBLE DEGREE OF QUALITY AND RELIABILITY OF THESE PARTS BEING DELIVERED UNDER NAVICP CONTRACTS; Part Name Assigned by Controlling Agency: INAVY: UMBILICAL BASE ASSY; DRAWING NAME: UMBILICAL BASE ASSY. 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 5975-01-181-8328 has DEMIL Code Q. 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.