NSN 5310-00-844-2242 · NIIN 008442242 · Part number H49820-4
Howmet Global Fastening Systems Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 15653
Government record, cited
NSN 5310-00-844-2242 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-844-2242. Manufacturer of record part number: H49820-4.
Also searched as5310-00-844-2242 ·
5310008442242 ·
NIIN 008442242 ·
00-844-2242 ·
FSC 5310 Nuts and Washers · CAGE 15653 · H49820-4 · 387527 · 387527
Width Across Flats: 0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
Thread Series: UNF
Precious Material: SILVER
Washer Thickness: 0.050 INCHES NOMINAL IN
Material Document and Classification: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Direction: RIGHT-HAND
Identification
NSN: 5310-00-844-2242
NIIN: 008442242
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: H49820-4
Manufacturer: Howmet Global Fastening Systems Inc
General Description
The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-844-2242, 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 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-00-844-2242
Primary Part Number
H49820-4
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
0.440 INCHES NOMINAL IN
Width Across Flats
0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
Thread Series
UNF
Precious Material
SILVER
Washer Thickness
0.050 INCHES NOMINAL IN
Material Document and Classification
AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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 5310-00-844-2242?
NSN 5310-00-844-2242 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 5310-00-844-2242?
NSN 5310-00-844-2242 has 3 manufacturer part numbers on file: H49820-4 (Howmet Global Fastening Systems Inc), 387527 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 387527 (Sps Technologies, Llc Dba PB Fasteners).
What are the specifications of H49820-4?
Key specifications for H49820-4: Overall Height: 0.328 INCHES NOMINAL IN; Washer Outside Diameter: 0.440 INCHES NOMINAL IN; Width Across Flats: 0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN; Thread Series: UNF. 14 specifications are documented in the U.S. Government catalog.
Is NSN 5310-00-844-2242 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.