The Retainer,operating Nut, cataloged under National Stock Number 4820-01-048-6724, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-048-6724 |
| Primary Part Number | 810-2177917-5-11 |
| Item Name | Retainer,operating Nut |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL BRONZE PER ASTM B61,EXTERNALLY THREADED,UNS 2.500-12,FIT A3A,ID 1.905 IN.,HEIGHT OVER ALL 1.109 IN.,HEX WRENCHING FEATURE,DISTANCE ACROSS FLAT 2.750 IN. IN |
| 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 |
|---|---|
| 810-2177917-5-11 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 810-2177917 | D/9 Drawing number reference only Naval Sea Systems Command |
| 803-2177917-5-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 803-2177917-05X-47 | 3/2 Design control — primary reference U.S. Government activity |
| 803-2177917-5-11 | 5/9 Secondary reference Naval Sea Systems Command |
| 803-2177917-05- | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4820-01-048-6724 is a Retainer,operating Nut, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-048-6724 has 1 manufacturer part number on file: 810-2177917-5-11 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-049-2382, 4820-01-093-3598. Verify interchangeability with system specifications before substitution.
Key specifications for 810-2177917-5-11: General Characteristics Item Description: MATERIAL BRONZE PER ASTM B61,EXTERNALLY THREADED,UNS 2.500-12,FIT A3A,ID 1.905 IN.,HEIGHT OVER ALL 1.109 IN.,HEX WRENCHING FEATURE,DISTANCE ACROSS FLAT 2.750 IN. IN; End Item Identification: NAVAL SHIP SYSTEMS COMMAND 5.000 IN. GATE VALVE PER DWG 803-2177917 IN. 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.