The Valve,check, cataloged under National Stock Number 4820-01-478-1056, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is D & D Instruments Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-478-1056 |
| Primary Part Number | 995100 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | D & D Instruments Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4820-01-478-1056 is a Valve,check, manufactured by D & D Instruments Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-478-1056 has 2 manufacturer part numbers on file: 995100 (D & D Instruments Inc), 130890 (Cadillac Gage Textron Inc.).
Key specifications for 995100: End Item Identification: DIRECT VENDOR DELIVERY (DVD), MODEL XM1117, ARMORED SECURITY VEHICLE (ASV), NSN 2320-01-437-6957, CAGE 10237, PART NUMBER 216098, TM 9-2320-307-24P, CONTRACT DAAE07-99-C-S001. 0 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.