PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1B8741Key,machine

Caterpillar Inc Div Caterpillar Defense · NSN 5315-00-125-2587 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-00-125-2587 — this item is cataloged by the U.S. Government under National Stock Number 5315-00-125-2587. Primary manufacturer part number: 1B8741.
Features
  • Key,machine — FSC 5315
  • 2 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Key,machine, cataloged under National Stock Number 5315-00-125-2587, is classified within Federal Supply Class 5315 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameKey,machine
FSC / FSG5315 — No Item Name Available (FSG 53)
ManufacturersStriegel Supply, Inc. Dba Striegel Supply Inc (CAGE 57217); Caterpillar Inc Div Caterpillar Defense (CAGE 11083)
Technical Specifications
ParameterValue
NSN5315-00-125-2587
Primary Part Number1B8741
Item NameKey,machine
FSC / FSG5315 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-01-301-2942128741 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Cross Mfg Co Inc
6650-01-423-2834120842 INTERCHANGEABLE
Binocular
Bushnell Group, Inc Div Bushnell Holdings, Inc.
Cross-Reference Index
Part NumberManufacturer
128741 Striegel Supply, Inc. Dba Striegel Supply Inc (USA)
1B8741 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
4820-01-301-2942INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
128741
6650-01-423-2834INTERCHANGEABLE
BINOCULAR
120842

Frequently Asked Questions

What is NSN 5315-00-125-2587?

NSN 5315-00-125-2587 is a Key,machine, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5315 (No Item Name Available). Status: active.

What are the part numbers for NSN 5315-00-125-2587?

NSN 5315-00-125-2587 has 2 cross-referenced part numbers: 128741 (Striegel Supply, Inc. Dba Striegel Supply Inc), 1B8741 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5315-00-125-2587?

There are 2 known substitutes for 5315-00-125-2587: 4820-01-301-2942, 6650-01-423-2834. Verify interchangeability with system specifications before substitution.

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