PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-B-157012Spring,helical,compression

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5360-00-521-1387 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-521-1387 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-521-1387. Primary manufacturer part number: SM-B-157012.
Features
  • Spring,helical,compression — FSC 5360
  • Surface Treatment Document and Classification: MIL-T-10727,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Spring Free Outside Diameter: 0.225 INCHES NOMINAL IN
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • Material Document and Classification: ASTM A228-51 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Spring Free Length: 0.406 INCHES NOMINAL IN
  • Coil Quantity: 5 1/2
  • Material: STEEL UNS K08500 OVERALL
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Uns K08500 Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-521-1387, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 11 verified specifications, 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
NSN5360-00-521-1387
Primary Part NumberSM-B-157012
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Surface Treatment Document and ClassificationMIL-T-10727,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Spring Free Outside Diameter0.225 INCHES NOMINAL IN
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
Material Document and ClassificationASTM A228-51 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Spring Free Length0.406 INCHES NOMINAL IN
Coil Quantity5 1/2
MaterialSTEEL UNS K08500 OVERALL
Inside Diameter0.153 INCHES NOMINAL IN
Surface TreatmentTIN OVERALL
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Style DesignatorCYLINDRICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5340-01-257-6178521-8-8 INTERCHANGEABLE
Clamp,loop
Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins
6160-01-394-7137 INTERCHANGEABLE
Retainer,battery
Cross-Reference Index
Part NumberManufacturer
52188 Kleinschmidt Inc (USA)
SM-B-157012 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
SM-B-157012 J F C Electronics Inc (USA)
Related Parts
5340-01-257-6178INTERCHANGEABLE
CLAMP,LOOP
521-8-8
6160-01-394-7137INTERCHANGEABLE
RETAINER,BATTERY

Frequently Asked Questions

What is NSN 5360-00-521-1387?

NSN 5360-00-521-1387 is a Spring,helical,compression, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-521-1387?

NSN 5360-00-521-1387 has 3 cross-referenced part numbers: 52188 (Kleinschmidt Inc), SM-B-157012 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), SM-B-157012 (J F C Electronics Inc).

What NSN replaces 5360-00-521-1387?

There are 2 known substitutes for 5360-00-521-1387: 5340-01-257-6178, 6160-01-394-7137. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-B-157012?

Key specifications for SM-B-157012: Surface Treatment Document and Classification: MIL-T-10727,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Spring Free Outside Diameter: 0.225 INCHES NOMINAL IN; Coil Helix Direction: RIGHT-HAND OR LEFT-HAND; Material Document and Classification: ASTM A228-51 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 11 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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