The Cap,valve, cataloged under National Stock Number 4820-01-599-9394, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-599-9394 |
| Primary Part Number | 803-2177525-C1XX-87L1 |
| Item Name | Cap,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 803-2177525-C1XX-87L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 803-2177525-C1XX-87 | 3/1 Design control — primary reference U.S. Government activity |
| 2177525 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-599-9394 is a Cap,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-599-9394 has 1 manufacturer part number on file: 803-2177525-C1XX-87L1 (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-645-6106. Verify interchangeability with system specifications before substitution.
Key specifications for 803-2177525-C1XX-87L1: Criticality Code Justification: ZZZY; Special Features: NOTE-DRAWING 803-2177525 SUPERSEDES 810-2177525. NOTE:THIS IS TO ADVISE THE USER TO REPLACE THE STEM AND DISC ASSEMBLY ALONG WITH THE BONNET ASSEMBLYTO FACILITATE VALVE RECONFIGURATION TO A BACKSEAT DESIGN TO DWG.2177525 REVISION P WHEN OLD PIECE PARTS ARE NO LONGER AVAILABLE.PDCN N68DWN 11/06/2006 LINE 1179 LISTS APL NOMENCLATURE AS OF 15 DEC 09 VALVE ANL .25IPS; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS. 2 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.