NSN 5310-01-128-7083 · NIIN 011287083 · Part number H50699-9
Howmet Global Fastening Systems Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 15653
Government record, cited
NSN 5310-01-128-7083 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-128-7083. Manufacturer of record part number: H50699-9.
Also searched as5310-01-128-7083 ·
5310011287083 ·
NIIN 011287083 ·
01-128-7083 ·
FSC 5310 Nuts and Washers · CAGE 15653 · H50699-9 · 29221 · 29221
Width Across Flats: 0.680 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN
Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)
Washer Thickness: 0.300 INCHES NOMINAL IN
Material Document and Classification: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Direction: RIGHT-HAND
Nominal Thread Size: 0.562 INCHES IN
Identification
NSN: 5310-01-128-7083
NIIN: 011287083
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: H50699-9
Manufacturer: Howmet Global Fastening Systems Inc
General Description
The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-128-7083, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-01-128-7083
Primary Part Number
H50699-9
Item Name
Nut,self-Locking,extended Washer
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Howmet Global Fastening Systems Inc
Status
ACTIVE
Washer Outside Diameter
0.922 INCHES NOMINAL IN
Width Across Flats
0.680 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN
Thread Series
UNIFIED NATIONAL JOINT FINE (UNJF)
Washer Thickness
0.300 INCHES NOMINAL IN
Material Document and Classification
AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Direction
RIGHT-HAND
Nominal Thread Size
0.562 INCHES IN
Locking Feature
PREVAILING TORQUE ALL METAL DESIGN
Nut Style
HEXAGON
Thread Class
3B
Thread Quantity Per Inch
18
Material
IRON ALLOY 660 OVERALL
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
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
2910-01-128-956529221POSSIBLE MATCH
MODIFICATION KIT,ENGINE ACCESSOR
Possible match (shared part number)Triumph Controls, Llc Dba Triumph Controls, Llc
3120-01-133-282129221POSSIBLE MATCH
BEARING
Possible match (shared part number)Eaton Corporation Dba Eaton Inoac
6515-01-246-4226292.21POSSIBLE MATCH
WIRE,BONE
Possible match (shared part number)Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
6150-01-364-868729-221POSSIBLE MATCH
WIRING HARNESS,BRANCHED
Possible match (shared part number)Celtech Corporation
4730-01-590-678229221POSSIBLE MATCH
COVER,FLUID STRAINER
Possible match (shared part number)Industrial Technologies and Services Llc
NSN 5310-01-128-7083 is a Nut,self-Locking,extended Washer, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-128-7083?
NSN 5310-01-128-7083 has 2 manufacturer part numbers on file: 29221 (Bc Technical Center, Llc Dba Bc Engineered Products), H50699-9 (Howmet Global Fastening Systems Inc).
What NSN replaces 5310-01-128-7083?
5 possible matches (shared part number, not a government interchangeability claim): 2910-01-128-9565, 3120-01-133-2821, 6515-01-246-4226. Verify interchangeability with system specifications before substitution.
What are the specifications of H50699-9?
Key specifications for H50699-9: Overall Height: 0.540 INCHES NOMINAL IN; Washer Outside Diameter: 0.922 INCHES NOMINAL IN; Width Across Flats: 0.680 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 12 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-128-7083 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.