PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5-1257-1Valve,float,aircraft Fuel Tank

Parker-Hannifin Corporation Dba Pneutronics · NSN 2915-00-777-0091 · FSC 2915 · No Item Name Available
Verified by PartsTable
NSN 2915-00-777-0091 — this item is cataloged by the U.S. Government under National Stock Number 2915-00-777-0091. Primary manufacturer part number: 5-1257-1.
Features
  • Valve,float,aircraft Fuel Tank — FSC 2915
  • General Characteristics Item Description: 60 PSI OPERATING PRESSURE,18-30V DC,5 AMP CURRENT DRAIN,CONTINUOUS DUTY,6.060 IN. O/A LG,3.630 IN. O/A H,3.230 IN. W V
  • 3 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corporation Dba Pneutronics
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,float,aircraft Fuel Tank, cataloged under National Stock Number 2915-00-777-0091, is classified within Federal Supply Class 2915 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. Government technical data includes 1 verified specification, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2915-00-777-0091
Primary Part Number5-1257-1
Item NameValve,float,aircraft Fuel Tank
FSC / FSG2915 / 29 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics
StatusACTIVE
General Characteristics Item Description60 PSI OPERATING PRESSURE,18-30V DC,5 AMP CURRENT DRAIN,CONTINUOUS DUTY,6.060 IN. O/A LG,3.630 IN. O/A H,3.230 IN. W V
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-00-090-0707942 INTERCHANGEABLE
O-Ring
Pierce-Roberts Rubber Company Dba Pierce Roberts Rubber
4730-01-480-269651257-1 INTERCHANGEABLE
Coupling Half,quick Disconnect
Transdigm Inc Div Adelwiggins Group
Cross-Reference Index
Part NumberManufacturer
5-1257-1 PRIMARY Parker-Hannifin Corporation Dba Pneutronics (USA)
5-1257-1 Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (USA)
5-1257-1 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
Related Parts
5331-00-090-0707INTERCHANGEABLE
O-RING
942
4730-01-480-2696INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
51257-1

Frequently Asked Questions

What is NSN 2915-00-777-0091?

NSN 2915-00-777-0091 is a Valve,float,aircraft Fuel Tank, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 2915 (No Item Name Available). Status: active.

What are the part numbers for NSN 2915-00-777-0091?

NSN 2915-00-777-0091 has 3 cross-referenced part numbers: 5-1257-1 (Parker-Hannifin Corporation Dba Pneutronics), 5-1257-1 (Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations), 5-1257-1 (Parker Hannifin Corporation Div Aerospace Group Headquarters).

What NSN replaces 2915-00-777-0091?

There are 2 known substitutes for 2915-00-777-0091: 5331-00-090-0707, 4730-01-480-2696. Verify interchangeability with system specifications before substitution.

What are the specifications of 5-1257-1?

Key specifications for 5-1257-1: General Characteristics Item Description: 60 PSI OPERATING PRESSURE,18-30V DC,5 AMP CURRENT DRAIN,CONTINUOUS DUTY,6.060 IN. O/A LG,3.630 IN. O/A H,3.230 IN. W V. 1 total characteristics are documented in the Federal Logistics Information System.

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