The Valve,modulating,pump Reservoir, cataloged under National Stock Number 1660-01-055-9879, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Triumph Thermal Systems, Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-055-9879 |
| Primary Part Number | U537804 |
| Item Name | Valve,modulating,pump Reservoir |
| FSC / FSG | 1660 / 16 — No Item Name Available |
| Manufacturer | Triumph Thermal Systems, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | CRES 30303 PER QQ-S-764 CL 303,303SE AND 303 PLUS X,FINISH PASSIVATE PER UAP SPEC PS-363,1.476 IN. LG REF,0.5935 IN. MAX 0.5930 IN. MIN DIA,1 HOLE ONE WALL ONLY 0.125 IN. DIA THRU,4 GROOVES 0.569 IN. DIA SPACED 0.062 IN.,SMALL END TAPERED FROM 0.4320 IN. T0 0.2380 IN. DIA IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 1660-01-055-9879 is a Valve,modulating,pump Reservoir, manufactured by Triumph Thermal Systems, Llc, classified under FSC 1660 (No Item Name Available). Status: active.
NSN 1660-01-055-9879 has 2 cross-referenced part numbers: 537804 (Triumph Thermal Systems, Llc), U537804 (Triumph Thermal Systems, Llc).
There are 3 known substitutes for 1660-01-055-9879: 5310-00-053-7804, 4820-00-652-3317, 3110-00-902-1641. Verify interchangeability with system specifications before substitution.
Key specifications for U537804: General Characteristics Item Description: CRES 30303 PER QQ-S-764 CL 303,303SE AND 303 PLUS X,FINISH PASSIVATE PER UAP SPEC PS-363,1.476 IN. LG REF,0.5935 IN. MAX 0.5930 IN. MIN DIA,1 HOLE ONE WALL ONLY 0.125 IN. DIA THRU,4 GROOVES 0.569 IN. DIA SPACED 0.062 IN.,SMALL END TAPERED FROM 0.4320 IN. T0 0.2380 IN. DIA IN; End Item Identification: PUMP P/NUA534121-12 ACFT F/TF15A. 2 total characteristics are documented in the Federal Logistics Information System.