The Flange,pipe,blind, cataloged under National Stock Number 4730-01-077-7575, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-077-7575 |
| Primary Part Number | 1854776 |
| Item Name | Flange,pipe,blind |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flange Diameter | 2.031 INCHES NOMINAL IN |
| Face Seating Surface Condition | GROUND |
| Surface Treatment Document and Classification | SPERRY NO.436 -6951295-2 MFR REF SINGLE TREATMENT RESPONSE |
| Flange Section Style | TONGUED FACE (BLIND) |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.144 INCHES NOMINAL IN |
| Material Document and Classification | QQ-B-626,COM 24,1/2 FED SPEC SINGLE MATERIAL RESPONSE |
| Recess Diameter | 1.260 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 1.781 INCHES NOMINAL IN |
| Raised Face Diameter | 1.447 INCHES NOMINAL IN |
| Raised Face Height | 0.031 INCHES NOMINAL IN |
| Surface Treatment | PAINT |
| Material | COPPER ALLOY |
| Thickness | 0.125 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4730-01-077-7575 is a Flange,pipe,blind, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-077-7575 has 3 manufacturer part numbers on file: 1854776 (Northrop Grumman Systems Corporation), 1854776 (Giuliante Machine Tool Inc. Dba Giuliante Machine Tool Inc), 1854776 (Northrop Grumman Systems Corporation).
Key specifications for 1854776: Flange Diameter: 2.031 INCHES NOMINAL IN; Face Seating Surface Condition: GROUND; Surface Treatment Document and Classification: SPERRY NO.436 -6951295-2 MFR REF SINGLE TREATMENT RESPONSE; Flange Section Style: TONGUED FACE (BLIND). 15 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.