The Flange,adapter,valve, cataloged under National Stock Number 4510-01-197-7739, is classified within Federal Supply Class 4510 (Plumbing Fixtures and Accessories) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4510-01-197-7739 |
| Primary Part Number | 255648 PIECE 2 |
| Item Name | Flange,adapter,valve |
| FSC / FSG | 4510 / 45 — Plumbing Fixtures and Accessories |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| General Characteristics Item Description | NICKEL COPPER; MEDIA SEA WATER; 10.500 IN. OD; 10 HOLES,0.812 IN. DIA 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 |
|---|---|
| 255648 PIECE 2 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 255648 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4510-01-197-7739 is a Flange,adapter,valve, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4510, Plumbing Fixtures and Accessories. Status: active.
NSN 4510-01-197-7739 has 1 manufacturer part number on file: 255648 PIECE 2 (Huntington Ingalls Inc Div Newport News Shipbuilding).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-197-7758, 4820-01-218-6625, 3040-01-247-7582. Verify interchangeability with system specifications before substitution.
Key specifications for 255648 PIECE 2: General Characteristics Item Description: NICKEL COPPER; MEDIA SEA WATER; 10.500 IN. OD; 10 HOLES,0.812 IN. DIA 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.