NSN 5305-01-668-9284 · NIIN 016689284 · Part number A-445-111PC78
Hansome Energy Systems Inc · FSC 5305 — Screws · FSG 53 — Hardware and Abrasives · CAGE 51802
Government record, cited
NSN 5305-01-668-9284 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-668-9284. Manufacturer of record part number: A-445-111PC78.
The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-668-9284, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hansome Energy Systems Inc. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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
5305-01-668-9284
Primary Part Number
A-445-111PC78
Item Name
Screw,cap,socket Head
FSC / FSG
5305 / 53 — Screws
Manufacturer
Hansome Energy Systems Inc
Status
ACTIVE
Fastener Length
2.250 INCHES NOMINAL IN
Nominal Thread Diameter
0.625 INCHES IN
Thread Direction
RIGHT-HAND
Surface Treatment
ZINC OVERALL
Thread Class
2A A
Thread Quantity Per Inch
11
Material
STEEL OVERALL
Thread Series Designator
UNIFIED NATIONAL COARSE (UNC)
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 Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5305-01-669-0858A-445-111PC79POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)Hansome Energy Systems Inc
5315-01-669-0873HAN3997-2POSSIBLE MATCH
KEY,MACHINE
Possible match (shared part number)Hansome Energy Systems Inc
5305-01-669-0876A-445-111PC83POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)Hansome Energy Systems Inc
5305-01-669-0878A-445-111PC81POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)Hansome Energy Systems Inc
5310-01-669-0890A-445-111PC95POSSIBLE MATCH
WASHER,LOCK
Possible match (shared part number)Hansome Energy Systems Inc
5310-01-669-0895A-445-111PC99POSSIBLE MATCH
WASHER,LOCK
Possible match (shared part number)Hansome Energy Systems Inc
5310-01-669-0898A-445-111PC126POSSIBLE MATCH
WASHER,LOCK
Possible match (shared part number)Hansome Energy Systems Inc
5305-01-669-0907A-445-111PC82POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)Hansome Energy Systems Inc
NSN 5305-01-668-9284 is a Screw,cap,socket Head, manufactured by Hansome Energy Systems Inc, classified under FSC 5305, Screws. Status: active.
What part numbers are listed for NSN 5305-01-668-9284?
NSN 5305-01-668-9284 has 1 manufacturer part number on file: A-445-111PC78 (Hansome Energy Systems Inc).
What NSN replaces 5305-01-668-9284?
8 possible matches (shared part number, not a government interchangeability claim): 5305-01-669-0858, 5315-01-669-0873, 5305-01-669-0876. Verify interchangeability with system specifications before substitution.
What are the specifications of A-445-111PC78?
Key specifications for A-445-111PC78: Fastener Length: 2.250 INCHES NOMINAL IN; Nominal Thread Diameter: 0.625 INCHES IN; Thread Direction: RIGHT-HAND; Special Features: MATERIAL CLASS 2. 8 specifications are documented in the U.S. Government catalog.
Is NSN 5305-01-668-9284 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.