PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12-805Seat,bypass Valve

Hamilton Sundstrand Corporation · NSN 2915-00-535-6251 · FSC 2915 · No Item Name Available
Verified by PartsTable
NSN 2915-00-535-6251 — this item is cataloged by the U.S. Government under National Stock Number 2915-00-535-6251. Primary manufacturer part number: 12-805.
Features
  • Seat,bypass Valve — FSC 2915
  • 1 verified cross-reference
  • Primary manufacturer: Hamilton Sundstrand Corporation
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,bypass Valve, cataloged under National Stock Number 2915-00-535-6251, is classified within Federal Supply Class 2915 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Hamilton Sundstrand Corporation. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,bypass Valve
FSC / FSG2915 — No Item Name Available (FSG 29)
ManufacturersHamilton Sundstrand Corporation (CAGE 99167)
Technical Specifications
ParameterValue
NSN2915-00-535-6251
Primary Part Number12-805
Item NameSeat,bypass Valve
FSC / FSG2915 / 29 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5950-00-175-868212805 INTERCHANGEABLE
Transformer,power Autotransforme
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
2530-00-844-824312805 INTERCHANGEABLE
Cup
Tld Wollard Llc
5945-01-113-18111115559 INTERCHANGEABLE
Solenoid,electrical
Borgwarner Pds (anderson), L.l.c.
6240-01-344-4785 INTERCHANGEABLE
Lamp,incandescent
2040-01-345-767212805 INTERCHANGEABLE
Stopper Assembly,cable
DP Manufacturing Inc.
6145-01-384-078812805 INTERCHANGEABLE
Cable,special Purpose,electrical
Nexans Aerospace Usa Llc
5120-01-430-7764 INTERCHANGEABLE
Extension,socket Wrench
5340-01-564-152312805 INTERCHANGEABLE
Cover,protective,dust and Moistu
Carlisle & Finch Co
5830-01-570-868412805 INTERCHANGEABLE
Matrix,communication
Matrix Systems Corporation
5995-01-677-042912805 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Littelfuse, Inc.
Cross-Reference Index
Part NumberManufacturer
12-805 PRIMARY Hamilton Sundstrand Corporation (USA)
Related Parts
5950-00-175-8682INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
12805
2530-00-844-8243INTERCHANGEABLE
CUP
12805
5945-01-113-1811INTERCHANGEABLE
SOLENOID,ELECTRICAL
1115559
6240-01-344-4785INTERCHANGEABLE
LAMP,INCANDESCENT
2040-01-345-7672INTERCHANGEABLE
STOPPER ASSEMBLY,CABLE
12805
6145-01-384-0788INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
12805
5120-01-430-7764INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5340-01-564-1523INTERCHANGEABLE
COVER,PROTECTIVE,DUST AND MOISTU
12805
5830-01-570-8684INTERCHANGEABLE
MATRIX,COMMUNICATION
12805
5995-01-677-0429INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
12805

Frequently Asked Questions

What is NSN 2915-00-535-6251?

NSN 2915-00-535-6251 is a Seat,bypass Valve, manufactured by Hamilton Sundstrand Corporation, classified under FSC 2915 (No Item Name Available). Status: active.

What are the part numbers for NSN 2915-00-535-6251?

NSN 2915-00-535-6251 has 1 cross-referenced part number: 12-805 (Hamilton Sundstrand Corporation).

What NSN replaces 2915-00-535-6251?

There are 10 known substitutes for 2915-00-535-6251: 5950-00-175-8682, 2530-00-844-8243, 5945-01-113-1811 and 7 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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