Washer, Flat 5310-01-239-9863 NSN 5310-01-239-9863 · NIIN 012399863 · Part number 856005-11
The Boeing Company Div Defense · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 76301
NSN 5310-01-239-9863 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-239-9863. Manufacturer of record part number: 856005-11 .
Also searched as
5310-01-239-9863 ·
5310012399863 ·
NIIN 012399863 ·
01-239-9863 ·
FSC 5310 Nuts and Washers · CAGE 76301 · 856005-11
Nearby stock numbers
← 5310-01-239-9862 Washer, Flat
·
5310-01-240-0203 →
AF 0.864 INCHES NOMINAL IN
NUT + WASHER
5310-01-239-9863 — Nuts and Washers
Features
Washer,flat — FSC 5310 Overall Diameter: 0.864 INCHES NOMINAL IN Cross-Sectional Shape Style: RECTANGULAR Peripheral Shape Style: ROUND Material: STEEL COMP 4340 OVERALL Center Hole Shape Style: ROUND Hole Diameter: 0.609 INCHES NOMINAL IN Thickness: 0.183 INCHES NOMINAL IN
Identification
NSN: 5310-01-239-9863
NIIN: 012399863
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 856005-11
Manufacturer: The Boeing Company Div Defense
General Description
The Washer,flat, cataloged under National Stock Number 5310-01-239-9863, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter Value NSN 5310-01-239-9863 Primary Part Number 856005-11 Item Name Washer,flat FSC / FSG 5310 / 53 — Nuts and Washers Manufacturer The Boeing Company Div Defense Status ACTIVE Overall Diameter 0.864 INCHES NOMINAL IN Cross-Sectional Shape Style RECTANGULAR Peripheral Shape Style ROUND Material STEEL COMP 4340 OVERALL Center Hole Shape Style ROUND Hole Diameter 0.609 INCHES NOMINAL IN Thickness 0.183 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition Status ACTIVE DEMIL Code DEMIL A — No Demilitarization Required Hazard No hazard code in the DLA record (HMIC N) Criticality Code X
Cross-Reference Index
Part Number Manufacturer
856005-11 PRIMARY The Boeing Company Div Defense (USA)
No interchangeability data on file.
Other items in FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040
5310-00-000-0040 · Item name not on file
5310-00-000-0077
NUT,PLAIN,ROUND
5310-00-000-0079
WASHER,FLAT
5310-00-000-0079
WASHER,FLAT
5310-00-000-1146
5310-00-000-1146 · Item name not on file
5310-00-000-3815
5310-00-000-3815 · Item name not on file
5310-00-000-4532
5310-00-000-4532 · Item name not on file
5310-00-000-4540
5310-00-000-4540 · Item name not on file
Frequently Asked Questions
What is NSN 5310-01-239-9863?
NSN 5310-01-239-9863 is a Washer,flat, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-239-9863?
NSN 5310-01-239-9863 has 1 manufacturer part number on file: 856005-11 (The Boeing Company Div Defense).
What are the specifications of 856005-11?
Key specifications for 856005-11: Overall Diameter: 0.864 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: STEEL COMP 4340 OVERALL. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-239-9863 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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