0.250-20UNC-3A X 1.000 IN LG

View detailed technical data, stock status, and sourcing information for: 0.250-20UNC-3A X 1.000 IN LG
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 0.250-20UNC-3A X 1.000 IN LG to receive an up to date pricing and availability quote by email.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-325-2738

Item Name Code

16282

Assigment Date

08/31/1990 (35 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

1.000 inches nominal fastener length, 0.900 inches minimum and 1.000 inches maximum thread length, right-hand thread direction, flat chamfer head style, 3a thread class

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.900 inches minimum and 1.000 inches maximum
Fastener Length: 1.000 inches nominal
Head Style: flat chamfer
Head Diameter: 0.365 inches minimum and 0.375 inches maximum
Head Height: 0.244 inches minimum and 0.250 inches maximum
Locking Feature: pellet or strip threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.188 inches nominal
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 80000 pounds per square inch
Minimum Yield Strength: 40000 pounds per square inch
Special Features: optional type locking feature,patch,pellet or strip
Material: nickel alloy 400 fastener
Material Document And Classification: qq-n-281 cla fed spec single material response fastener
Thread Series Designator: unc
Nondefinitive Spec/Std Data: n type

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
0.250-20UNC-3A X 1.000 IN LG	Socket Head Cap Screw
122-5486623 PC122	Socket Head Cap Screw
53A-00-199-4	Socket Head Cap Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-01-325-2738?

The FSCG of the NSN 5305-01-325-2738 is 5305

Does the NSN 5305-01-325-2738 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-325-2738 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5305-01-325-2738 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-325-2738 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5305-01-325-2738 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Fri, Aug 31, 1990