PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14955Seat,helical Compression Spring

Mission Systems Orchard Park Inc · NSN 5340-00-137-6602 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-137-6602 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-137-6602. Primary manufacturer part number: 14955.
Features
  • Seat,helical Compression Spring — FSC 5340
  • Bore Diameter: 0.2500 INCHES NOMINAL IN
  • Design Type: SOLID
  • End Diameter: 0.4950 INCHES MINIMUM AND 0.5050 INCHES MAXIMUM IN
  • Distance From End to First Step: 0.1250 INCHES NOMINAL IN
  • Surface Treatment: ANODIZE
  • Material: ALUMINUM ALLOY
  • Surface Treatment Document and Classification: MIL-A-8625, TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Aluminum Alloy construction
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-137-6602, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mission Systems Orchard Park Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5340-00-137-6602
Primary Part Number14955
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMission Systems Orchard Park Inc
StatusACTIVE
Bore Diameter0.2500 INCHES NOMINAL IN
Design TypeSOLID
End Diameter0.4950 INCHES MINIMUM AND 0.5050 INCHES MAXIMUM IN
Distance From End to First Step0.1250 INCHES NOMINAL IN
Surface TreatmentANODIZE
MaterialALUMINUM ALLOY
Surface Treatment Document and ClassificationMIL-A-8625, TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
First Step Diameter0.6250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5950-00-070-782914955 INTERCHANGEABLE
Transformer,power
Elbitamerica, Inc.
2520-00-172-1822 INTERCHANGEABLE
Axle Assembly,automotive,driving
4730-00-287-1706SAE J512 3-3-3 040401BA INTERCHANGEABLE
Tee,tube
Sae International Dba Sae International
1660-00-304-571914955 INTERCHANGEABLE
Fulcrum,knife Edge
Honeywell International, Inc Div Aerospace-Tucson
4720-00-994-181814955 INTERCHANGEABLE
Hose Assembly,metallic
Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
Cross-Reference Index
Part NumberManufacturer
14955 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
14955 PRIMARY Mission Systems Orchard Park Inc (USA)
Related Parts
5950-00-070-7829INTERCHANGEABLE
TRANSFORMER,POWER
14955
2520-00-172-1822INTERCHANGEABLE
AXLE ASSEMBLY,AUTOMOTIVE,DRIVING
4730-00-287-1706INTERCHANGEABLE
TEE,TUBE
SAE J512 3-3-3 040401BA
1660-00-304-5719INTERCHANGEABLE
FULCRUM,KNIFE EDGE
14955
4720-00-994-1818INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
14955

Frequently Asked Questions

What is NSN 5340-00-137-6602?

NSN 5340-00-137-6602 is a Seat,helical Compression Spring, manufactured by Mission Systems Orchard Park Inc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-137-6602?

NSN 5340-00-137-6602 has 2 cross-referenced part numbers: 14955 (Ingersoll-Rand Company Dba Ingersoll-Rand), 14955 (Mission Systems Orchard Park Inc).

What NSN replaces 5340-00-137-6602?

There are 5 known substitutes for 5340-00-137-6602: 5950-00-070-7829, 2520-00-172-1822, 4730-00-287-1706 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14955?

Key specifications for 14955: Bore Diameter: 0.2500 INCHES NOMINAL IN; Design Type: SOLID; End Diameter: 0.4950 INCHES MINIMUM AND 0.5050 INCHES MAXIMUM IN; Special Features: MATL-ALUM. ALLOY QQ-A-250/8;NOT CASEHARDENED. 10 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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