Screw, Cap, Socket Head 5305-01-503-9123 NSN 5305-01-503-9123 · NIIN 015039123 · Part number 220-3135-5
Efdyn Inc · FSC 5305 — Screws · FSG 53 — Hardware and Abrasives · CAGE 06623
NSN 5305-01-503-9123 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-503-9123. Manufacturer of record part number: 220-3135-5 .
Also searched as
5305-01-503-9123 ·
5305015039123 ·
NIIN 015039123 ·
01-503-9123 ·
FSC 5305 Screws · CAGE 06623 · 220-3135-5 · 1-2323-0-10
Nearby stock numbers
← 5305-01-503-9051
·
5305-01-503-9126 Screw, Cap, Socket Head →
L 1.250 INCHES NOMINAL IN
⌀0.500 INCHES IN
UNF
BOLT/SCREW PROFILE
5305-01-503-9123 — Screws
Features
Screw,cap,socket Head — FSC 5305 Fastener Length: 1.250 INCHES NOMINAL IN Thread Length: 1.250 INCHES NOMINAL IN Nominal Thread Diameter: 0.500 INCHES IN Thread Direction: RIGHT-HAND Thread Quantity Per Inch: 20 Material: STEEL OVERALL Thread Series Designator: UNF
Identification
NSN: 5305-01-503-9123
NIIN: 015039123
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: 220-3135-5
Manufacturer: Efdyn Inc
General Description
The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-503-9123, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Efdyn Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter Value NSN 5305-01-503-9123 Primary Part Number 220-3135-5 Item Name Screw,cap,socket Head FSC / FSG 5305 / 53 — Screws Manufacturer Efdyn Inc Status ACTIVE Fastener Length 1.250 INCHES NOMINAL IN Thread Length 1.250 INCHES NOMINAL IN Nominal Thread Diameter 0.500 INCHES IN Thread Direction RIGHT-HAND Thread Quantity Per Inch 20 Material STEEL OVERALL Thread Series Designator UNF
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
220-3135-5 PRIMARY Efdyn Inc (USA)
Reference documents
Reference Meaning
1-2323-0-10
D/9 Drawing number reference only Efdyn Inc
No interchangeability data on file.
Other items in FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016
5305-00-001-5016 · Item name not on file
5305-00-001-9160
5305-00-001-9160 · Item name not on file
5305-00-001-9629
SCREW,ADJUSTING CLEVIS
5305-00-001-9742
5305-00-001-9742 · Item name not on file
5305-00-001-9768
SCREW,CAP,SOCKET HEAD
5305-00-003-4306
SCREW,MACHINE
5305-00-003-6694
5305-00-003-6694 · Item name not on file
5305-00-003-6753
5305-00-003-6753 · Item name not on file
Frequently Asked Questions
What is NSN 5305-01-503-9123?
NSN 5305-01-503-9123 is a Screw,cap,socket Head, manufactured by Efdyn Inc, classified under FSC 5305, Screws. Status: active.
What part numbers are listed for NSN 5305-01-503-9123?
NSN 5305-01-503-9123 has 1 manufacturer part number on file: 220-3135-5 (Efdyn Inc).
What are the specifications of 220-3135-5?
Key specifications for 220-3135-5: Fastener Length: 1.250 INCHES NOMINAL IN; Thread Length: 1.250 INCHES NOMINAL IN; Nominal Thread Diameter: 0.500 INCHES IN; Thread Direction: RIGHT-HAND. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5305-01-503-9123 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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