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P-ZLAB-0000335

View detailed technical data, stock status, and sourcing information for: P-ZLAB-0000335

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P-ZLAB-0000335
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-339-9561
Item Name Code
18257
Assigment Date
06/05/1991 (35 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

1.610 inches minimum and 1.640 inches maximum fastener length, 2a thread class, 1.000 inches nominal thread length, crowned hexagon head style, right-hand thread direction

Product Characteristics

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

Thread Class
2a
Thread Direction
right-hand
Thread Length
1.000 inches nominal
Fastener Length
1.610 inches minimum and 1.640 inches maximum
Head Style
crowned hexagon
Head Height
0.530 inches minimum and 0.640 inches maximum
Width Between Flats
1.100 inches minimum and 1.125 inches maximum
Nominal Thread Diameter
0.750 inches
Thread Quantity Per Inch
16
Hardness Rating
37.0 rockwell c minimum and 44.0 rockwell c maximum overall
Material
steel comp 8640 overall
Material Document And Classification
astm a322 assn std single material response or astm a331 assn std single material response overall
Surface Treatment
oil overall
Surface Treatment Document And Classification
mil-l-3150 mil spec single treatment response overall
Thread Series Designator
unf

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
11.04.05.03 Hexagon Head Cap Screw
12268563 Hexagon Head Cap Screw
3505013399561 Hexagon Head Cap Screw
ESM109001 Hexagon Head Cap Screw
P-ZLAB-0000335 Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-339-9561?
The FSCG of the NSN 5305-01-339-9561 is 5305
Does the NSN 5305-01-339-9561 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-339-9561 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 5305-01-339-9561 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-339-9561 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 5305-01-339-9561 was assigned to the Federal Catalog?
It was assigned 35 years ago, on Wed, Jun 5, 1991

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