PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

158255PC58Washer,lock

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5310-00-262-3570 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-262-3570 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-262-3570. Primary manufacturer part number: 158255PC58.
Features
  • Washer,lock — FSC 5310
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Hole Diameter: 1.017 INCHES MINIMUM AND 1.053 INCHES MAXIMUM IN
  • Departure From Cited Designator: AS MODIFIED BY DIM.
  • Material Thickness: 0.250 INCHES NOMINAL IN
  • Outside Diameter: 1.687 INCHES NOMINAL IN
  • Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 301 or Steel Comp 302 or Steel Comp 303 or Steel Comp 303SE or Steel Comp 304 or Steel Comp 304l or Steel Comp 305 or Steel Comp 308 or Steel Comp 309 or Steel Comp 309s or Steel Comp 310 or Steel Comp 310s or Steel Comp 314 or Steel Comp 316 or Steel Comp 316l or Steel Comp 317 or Steel Comp 321 or Steel Comp 347 or Steel Comp 348 or Steel Comp 385 or Steel Comp 384 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-262-3570, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN5310-00-262-3570
Primary Part Number158255PC58
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
Hole Diameter1.017 INCHES MINIMUM AND 1.053 INCHES MAXIMUM IN
Departure From Cited DesignatorAS MODIFIED BY DIM.
Material Thickness0.250 INCHES NOMINAL IN
Outside Diameter1.687 INCHES NOMINAL IN
Hardness Rating35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
Nondefinitive Spec/std DataC CLASS
MaterialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 385 OR STEEL COMP 384 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-00-262-3491158255PC56 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-262-3558158255PC46 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-262-3559 INTERCHANGEABLE
Washer,lock
5310-00-262-356212Z3019-9 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-262-3563 INTERCHANGEABLE
Washer,lock
5310-00-262-3564 INTERCHANGEABLE
Washer,lock
5310-00-595-7143 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
158255PC58 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
FFW84CLASSC Federal Specifications Promulgated by General Services Administration Washington DC (USA)
345894PC215 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5310-00-262-3491INTERCHANGEABLE
WASHER,LOCK
158255PC56
5310-00-262-3558INTERCHANGEABLE
WASHER,LOCK
158255PC46
5310-00-262-3559INTERCHANGEABLE
WASHER,LOCK
5310-00-262-3562INTERCHANGEABLE
WASHER,LOCK
12Z3019-9
5310-00-262-3563INTERCHANGEABLE
WASHER,LOCK
5310-00-262-3564INTERCHANGEABLE
WASHER,LOCK
5310-00-595-7143INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-262-3570?

NSN 5310-00-262-3570 is a Washer,lock, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-262-3570?

NSN 5310-00-262-3570 has 3 cross-referenced part numbers: 158255PC58 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), FFW84CLASSC (Federal Specifications Promulgated by General Services Administration Washington DC), 345894PC215 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5310-00-262-3570?

There are 7 known substitutes for 5310-00-262-3570: 5310-00-262-3491, 5310-00-262-3558, 5310-00-262-3559 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 158255PC58?

Key specifications for 158255PC58: Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND; Hole Diameter: 1.017 INCHES MINIMUM AND 1.053 INCHES MAXIMUM IN; Departure From Cited Designator: AS MODIFIED BY DIM.. 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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