NAS1611-251A

View detailed technical data, stock status, and sourcing information for: NAS1611-251A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-01-365-3101

Item Name Code

47946

Assigment Date

10/06/1992 (33 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes:undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also bolt, externally relieved body and bolt, internal wrenching.

5.074 inches minimum and 5.144 inches maximum center hole diameter, rubber ethylene-propylene class epm material, 0.135 inches minimum and 0.143 inches maximum cross-sectional height

Product Characteristics

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

Cross-Sectional Height: 0.135 inches minimum and 0.143 inches maximum
Center Hole Diameter: 5.074 inches minimum and 5.144 inches maximum
Material: rubber ethylene-propylene class epm

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
NAS1601-251	O-Ring
NAS1611-251A	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-01-365-3101?

The FSCG of the NSN 5331-01-365-3101 is 5331

Does the NSN 5331-01-365-3101 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-01-365-3101 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 5331-01-365-3101 contain precious materials?

Item does not contain precious metal.

Does NSN 5331-01-365-3101 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 5331-01-365-3101 was assigned to the Federal Catalog?

It was assigned 33 years ago, on Tue, Oct 6, 1992