The Adapter,straight,flange to Boss, cataloged under National Stock Number 4730-01-215-6776, 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 Triumph Thermal Systems, Llc. Government technical data includes 9 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. 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 | 4730-01-215-6776 |
| Primary Part Number | 536700-1 |
| Item Name | Adapter,straight,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Triumph Thermal Systems, Llc |
| Status | ACTIVE |
| Flange Shape | TRIANGULAR WITH HOLES SECOND END |
| Connection Style | GROOVED (TUBE) FIRST END |
| Connection Style | FLARED W/ GASKET SEAL (BOSS) SECOND END |
| Nominal Overall Length | 2.022 INCHES IN |
| Connection Type | UNTHREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED INTERNAL TUBE SECOND END |
| Material Document and Classification | MS5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Quantity | 3 SECOND END |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 536700-1 PRIMARY | Triumph Thermal Systems, Llc (USA) |
NSN 4730-01-215-6776 is a Adapter,straight,flange to Boss, manufactured by Triumph Thermal Systems, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-215-6776 has 1 manufacturer part number on file: 536700-1 (Triumph Thermal Systems, Llc).
1 possible match (shared part number, not a government interchangeability claim): 6130-01-331-0017. Verify interchangeability with system specifications before substitution.
Key specifications for 536700-1: Flange Shape: TRIANGULAR WITH HOLES SECOND END; Connection Style: GROOVED (TUBE) FIRST END; Connection Style: FLARED W/ GASKET SEAL (BOSS) SECOND END; Nominal Overall Length: 2.022 INCHES IN. 9 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.