PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40918-1Bolt,assembled Washer

Fleet Readiness Center East Div Department of Navy · NSN 5306-01-335-2897 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-01-335-2897 — this item is cataloged by the U.S. Government under National Stock Number 5306-01-335-2897. Primary manufacturer part number: 40918-1.
Features
  • Bolt,assembled Washer — FSC 5306
  • Thread Length: 1.016 INCHES MINIMUM AND 1.066 INCHES MAXIMUM IN
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)
  • Material: STEEL COMP 1330 OR STEEL COMP 4130 PRIMARY WASHER
  • Surface Treatment Document and Classification: QQ-P-416 TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
  • Width Between Flats: 1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN
  • Shank Unthreaded Hole Diameter: 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE IN
  • Surface Treatment: CADMIUM AND CHROMATE FASTENER
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1330 or Steel Comp 4130 Primary Washer construction
General Description

The Bolt,assembled Washer, cataloged under National Stock Number 5306-01-335-2897, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fleet Readiness Center East Div Department of Navy. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-01-335-2897
Primary Part Number40918-1
Item NameBolt,assembled Washer
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerFleet Readiness Center East Div Department of Navy
StatusACTIVE
Thread Length1.016 INCHES MINIMUM AND 1.066 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF)
MaterialSTEEL COMP 1330 OR STEEL COMP 4130 PRIMARY WASHER
Surface Treatment Document and ClassificationQQ-P-416 TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
Width Between Flats1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN
Shank Unthreaded Hole Diameter0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE IN
Surface TreatmentCADMIUM AND CHROMATE FASTENER
Thread Quantity Per Inch16
Minimum Tensile Strength160000 POUNDS PER SQUARE INCH LBS
Primary Washer StyleFLAT
Fastener Length3.776 INCHES MINIMUM AND 3.806 INCHES MAXIMUM IN
Features ProvidedSPACER
MaterialSTEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 FASTENER
Nominal Thread Diameter0.750 INCHES IN
Primary Washer Material Thickness0.062 INCHES NOMINAL IN
Head Height0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Washer Quantity1
Primary Washer Outside Diameter1.250 INCHES NOMINAL IN
Material Document and ClassificationFED 66 FED STD ALL MATERIAL RESPONSES PRIMARY WASHER
Hardness Rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM FASTENER
Distance From Head Largest Bearing Surface to Shank Hole Center3.514 INCHES MINIMUM AND 3.564 INCHES MAXIMUM FIRST HOLE IN
Head StyleDISHED HEXAGON
Thread Class3A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5120-00-761-173230118 INTERCHANGEABLE
Socket,socket Wrench
Williams J H Industrial Products Inc
5310-00-812-3174 INTERCHANGEABLE
Nut,plain,hexagon
6150-01-505-001940918 INTERCHANGEABLE
Lead Assembly,electrical
Cooper Crouse-Hinds Llc
8315-01-547-916740918-1 INTERCHANGEABLE
Strip,coated Cloth
Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc
7530-01-549-841240918 INTERCHANGEABLE
Label
Dymo Corporation
Cross-Reference Index
Part NumberManufacturer
40918-1 PRIMARY Fleet Readiness Center East Div Department of Navy (USA)
40918 Fleet Readiness Center East Div Department of Navy (USA)
Related Parts
5120-00-761-1732INTERCHANGEABLE
SOCKET,SOCKET WRENCH
30118
5310-00-812-3174INTERCHANGEABLE
NUT,PLAIN,HEXAGON
6150-01-505-0019INTERCHANGEABLE
LEAD ASSEMBLY,ELECTRICAL
40918
8315-01-547-9167INTERCHANGEABLE
STRIP,COATED CLOTH
40918-1
7530-01-549-8412INTERCHANGEABLE
LABEL
40918

Frequently Asked Questions

What is NSN 5306-01-335-2897?

NSN 5306-01-335-2897 is a Bolt,assembled Washer, manufactured by Fleet Readiness Center East Div Department of Navy, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-01-335-2897?

NSN 5306-01-335-2897 has 2 cross-referenced part numbers: 40918-1 (Fleet Readiness Center East Div Department of Navy), 40918 (Fleet Readiness Center East Div Department of Navy).

What NSN replaces 5306-01-335-2897?

There are 5 known substitutes for 5306-01-335-2897: 5120-00-761-1732, 5310-00-812-3174, 6150-01-505-0019 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40918-1?

Key specifications for 40918-1: Thread Length: 1.016 INCHES MINIMUM AND 1.066 INCHES MAXIMUM IN; Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF); Material: STEEL COMP 1330 OR STEEL COMP 4130 PRIMARY WASHER; Surface Treatment Document and Classification: QQ-P-416 TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER. 24 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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