The Flange,pipe,blind, cataloged under National Stock Number 4730-01-199-1889, 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 Lockheed Martin Corporation Div Rms. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-199-1889 |
| Primary Part Number | 1210B1497 |
| Item Name | Flange,pipe,blind |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Flange Diameter | 2.250 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Flange Section Style | RAISED FACE (BLIND) |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.188 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-225/8,T651 FED SPEC SINGLE MATERIAL RESPONSE |
| Groove Depth | 0.098 INCHES NOMINAL IN |
| Groove Pitch Diameter | 1.400 INCHES NOMINAL IN |
| Bolt Hole Quantity | 2 |
| Bolt Circle Diameter | 1.875 INCHES NOMINAL IN |
| Raised Face Height | 0.375 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 |
| Groove Width | 0.095 INCHES NOMINAL IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 1210B1497 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| 1213E1527 FIND 30 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 1213E1527 FIND 30 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
| 1210B1497 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
| 1213E1527 | D/9 Drawing number reference only Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 4730-01-199-1889 is a Flange,pipe,blind, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-199-1889 has 2 manufacturer part numbers on file: 1210B1497 (Lockheed Martin Corporation Div Rms), 1213E1527 FIND 30 (Lockheed Martin Corporation Div Rms).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-199-1890, 2920-01-205-0692. Verify interchangeability with system specifications before substitution.
Key specifications for 1210B1497: Flange Diameter: 2.250 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Flange Section Style: RAISED FACE (BLIND); Style Designator: ROUND, ONE BOLT HOLE CIRCLE. 14 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.