PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4004058Spring,finger Valve

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 2840-00-367-8391 · FSC 2840 · No Item Name Available
Verified by PartsTable
NSN 2840-00-367-8391 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-367-8391. Primary manufacturer part number: 4004058.
Features
  • Spring,finger Valve — FSC 2840
  • General Characteristics Item Description: NICKEL ALLOY,AMS5544,2.150 IN. MIN,2.160 IN. MAX,OD,0.004 IN. MIN,0.006 IN. MAX THK IN
  • 4 verified cross-references
  • Primary manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Mechanical energy storage
  • Vibration dampening
General Description

The Spring,finger Valve, cataloged under National Stock Number 2840-00-367-8391, is classified within Federal Supply Class 2840 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2840-00-367-8391
Primary Part Number4004058
Item NameSpring,finger Valve
FSC / FSG2840 / 28 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
General Characteristics Item DescriptionNICKEL ALLOY,AMS5544,2.150 IN. MIN,2.160 IN. MAX,OD,0.004 IN. MIN,0.006 IN. MAX THK IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-599-9103HD535 INTERCHANGEABLE
Gasket
Schramm, Inc.
Cross-Reference Index
Part NumberManufacturer
4004058 Turbo Power & Marine System Inc Sub of United Technologies Corp (USA)
4004058 Rtx Corporation Div Pratt & Whitney (USA)
2840PL0664250 Jednolity Indeks Materialowy - Uniform Material Index (POL)
4004058 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5330-00-599-9103INTERCHANGEABLE
GASKET
HD535

Frequently Asked Questions

What is NSN 2840-00-367-8391?

NSN 2840-00-367-8391 is a Spring,finger Valve, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840 (No Item Name Available). Status: active.

What are the part numbers for NSN 2840-00-367-8391?

NSN 2840-00-367-8391 has 4 cross-referenced part numbers: 4004058 (Turbo Power & Marine System Inc Sub of United Technologies Corp), 4004058 (Rtx Corporation Div Pratt & Whitney), 2840PL0664250 (Jednolity Indeks Materialowy - Uniform Material Index), 4004058 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 2840-00-367-8391?

There is 1 known substitute for 2840-00-367-8391: 5330-00-599-9103. Verify interchangeability with system specifications before substitution.

What are the specifications of 4004058?

Key specifications for 4004058: General Characteristics Item Description: NICKEL ALLOY,AMS5544,2.150 IN. MIN,2.160 IN. MAX,OD,0.004 IN. MIN,0.006 IN. MAX THK IN. 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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