PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

187174Washer,lock

General Motors Corp · NSN 5310-00-018-7174 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-018-7174 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-018-7174. Primary manufacturer part number: 187174.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
  • Nondefinitive Spec/std Data: 2 STYLE AND B CLASS
  • Hole Diameter: 0.509 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OR 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
  • Material: STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1064 OR STEEL COMP 1065 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1071 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1060 or Steel Comp 1561 or Steel Comp 1064 or Steel Comp 1065 or Steel Comp 1566 or Steel Comp 1069 or Steel Comp 1070 or Steel Comp 1071 or Steel Comp 1572 or Steel Comp 1074 or Steel Comp 1075 or Steel Comp 1078 or Steel Comp 1080 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-018-7174, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Motors Corp. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-018-7174
Primary Part Number187174
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusACTIVE
Material Thickness0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
Nondefinitive Spec/std Data2 STYLE AND B CLASS
Hole Diameter0.509 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Hardness Rating35.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OR 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
MaterialSTEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1064 OR STEEL COMP 1065 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1071 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Outside Diameter0.873 INCHES MAXIMUM IN
Surface TreatmentPASSIVATE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2915-00-098-3574187174 INTERCHANGEABLE
Rack,cutoff
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
5310-00-194-7350 INTERCHANGEABLE
Washer,lock
5310-00-194-7351 INTERCHANGEABLE
Washer,lock
5310-00-543-5756 INTERCHANGEABLE
Washer,lock
5310-00-655-96319167216 INTERCHANGEABLE
Washer,lock
Us Army Aviation and Missile Command
5310-00-716-8550 INTERCHANGEABLE
Washer,lock
5310-00-933-8778004-003005-024 INTERCHANGEABLE
Washer,lock
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
Cross-Reference Index
Part NumberManufacturer
187174 General Motors Corp (USA)
187174 General Motors Llc Dba General Motors Llc (USA)
MS35338-86 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
N406P45 General Electric Company (USA)
8599471-017 Delco Electronics Corp Delco Systems Opns (USA)
FFW84CLASSBSTYLE2 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
8599471-017 L3harris Mas Inc Div L3harris Mas Inc. (CAN)
XX002-0700 Rdm Technology B.v. (NLD)
8599471-017 General Motors Corp (USA)
Related Parts
2915-00-098-3574INTERCHANGEABLE
RACK,CUTOFF
187174
5310-00-194-7350INTERCHANGEABLE
WASHER,LOCK
5310-00-194-7351INTERCHANGEABLE
WASHER,LOCK
5310-00-543-5756INTERCHANGEABLE
WASHER,LOCK
5310-00-655-9631INTERCHANGEABLE
WASHER,LOCK
9167216
5310-00-716-8550INTERCHANGEABLE
WASHER,LOCK
5310-00-933-8778INTERCHANGEABLE
WASHER,LOCK
004-003005-024

Frequently Asked Questions

What is NSN 5310-00-018-7174?

NSN 5310-00-018-7174 is a Washer,lock, manufactured by General Motors Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-018-7174?

NSN 5310-00-018-7174 has 9 cross-referenced part numbers: 187174 (General Motors Corp), 187174 (General Motors Llc Dba General Motors Llc), MS35338-86 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), N406P45 (General Electric Company), 8599471-017 (Delco Electronics Corp Delco Systems Opns) and 4 more.

What NSN replaces 5310-00-018-7174?

There are 7 known substitutes for 5310-00-018-7174: 2915-00-098-3574, 5310-00-194-7350, 5310-00-194-7351 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 187174?

Key specifications for 187174: Material Thickness: 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN; Nondefinitive Spec/std Data: 2 STYLE AND B CLASS; Hole Diameter: 0.509 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN; Style Designator: SPLIT HELICAL-RIGHT HAND. 9 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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