The Reducer,tube, cataloged under National Stock Number 4730-00-277-7539, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Thompson Emery Machine & Supply Co. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-277-7539 |
| Primary Part Number | U41-1810 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Thompson Emery Machine & Supply Co |
| Status | ACTIVE |
| Reducer Type | CONCENTRIC |
| Nominal Overall Length | 1.590 INCHES IN |
| Connection Type | UNTHREADED EXTERNAL TUBE SECOND END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Style | CRIMPED (TUBE) FIRST END |
| Nominal Outside Diameter Tube Accommodated | 1.125 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES FIRST END IN |
| Material | COPPER ALLOY OVERALL |
| Connection Style | PLAIN (TUBE) SECOND END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4730-00-277-7539 is a Reducer,tube, manufactured by Thompson Emery Machine & Supply Co, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-277-7539 has 3 cross-referenced part numbers: C0MM (Hartford Compressors Inc), B16-1963 (American National Standards Institute Incorporated Dba American National Standards Institute), U41-1810 (Thompson Emery Machine & Supply Co).
There are 5 known substitutes for 4730-00-277-7539: 5315-00-225-5160, 2640-00-535-7509, 5305-00-685-3359 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for U41-1810: Reducer Type: CONCENTRIC; Nominal Overall Length: 1.590 INCHES IN; Connection Type: UNTHREADED EXTERNAL TUBE SECOND END; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 9 total characteristics are documented in the Federal Logistics Information System.