PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

58310 ITEM 21Spring,helical,compression

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 5360-01-155-8303 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-01-155-8303 — this item is cataloged by the U.S. Government under National Stock Number 5360-01-155-8303. Primary manufacturer part number: 58310 ITEM 21.
Features
  • Spring,helical,compression — FSC 5360
  • Criticality Code Justification: ZZZY
  • Material Document and Classification: QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 302 OVERALL
  • Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
  • 4 verified cross-references
  • Primary manufacturer: Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Comp 302 Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-01-155-8303, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-01-155-8303
Primary Part Number58310 ITEM 21
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Criticality Code JustificationZZZY
Material Document and ClassificationQQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 302 OVERALL
Reference Number Differentiating CharacteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5133-00-228-1374 INTERCHANGEABLE
Drill,twist
5331-00-833-7491MS28778-5 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5360-01-033-251129402 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
6140-01-042-086729402 INTERCHANGEABLE
Battery,storage
Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company
5950-01-227-384429402 INTERCHANGEABLE
Coil,electrical
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
5330-01-358-958629402 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Allied Systems Company Dba Allied Systems Co
Cross-Reference Index
Part NumberManufacturer
58310 ITEM 21 Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
29402CP Naval Inventory Control Point Mechanicsburg (USA)
29402 Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
58310 ITEM 21CP Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5133-00-228-1374INTERCHANGEABLE
DRILL,TWIST
5331-00-833-7491INTERCHANGEABLE
O-RING
MS28778-5
5360-01-033-2511INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
29402
6140-01-042-0867INTERCHANGEABLE
BATTERY,STORAGE
29402
5950-01-227-3844INTERCHANGEABLE
COIL,ELECTRICAL
29402
5330-01-358-9586INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
29402

Frequently Asked Questions

What is NSN 5360-01-155-8303?

NSN 5360-01-155-8303 is a Spring,helical,compression, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-01-155-8303?

NSN 5360-01-155-8303 has 4 cross-referenced part numbers: 58310 ITEM 21 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson), 29402CP (Naval Inventory Control Point Mechanicsburg), 29402 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson), 58310 ITEM 21CP (Naval Inventory Control Point Mechanicsburg).

What NSN replaces 5360-01-155-8303?

There are 6 known substitutes for 5360-01-155-8303: 5133-00-228-1374, 5331-00-833-7491, 5360-01-033-2511 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 58310 ITEM 21?

Key specifications for 58310 ITEM 21: Criticality Code Justification: ZZZY; Material Document and Classification: QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL COMP 302 OVERALL; Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D. 4 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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