26CL048Y

View detailed technical data, stock status, and sourcing information for: 26CL048Y
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-222-2989

Item Name Code

05275

Assigment Date

07/09/1969 (57 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal 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. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

0.457 inches maximum nut height, prevailing torque all metal design or prevailing torque with nonmetallic insert locking feature, right-hand thread direction, 3b thread class, cap nut style

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design or prevailing torque with nonmetallic insert
Nut Style: cap
Nut Height: 0.457 inches maximum
Width Across Flats: 0.500 inches nominal
Temp Rating: -65.0 fahrenheit minimum and 250.0 fahrenheit maximum
Thread Series: unjf
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.250 inches
Bearing Surface Type: chamfered or washer faced
Material: plastic polyamide (nylon) locking insert
Material: steel nut
Surface Treatment: cadmium cap
Surface Treatment: cadmium nut
Surface Treatment Document And Classification: qq-p-416,type 2,class 2 fed spec single treatment response cap
Surface Treatment Document And Classification: qq-p-416,type 2,class 2 fed spec single treatment response nut

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
26CL048Y	Cap Self-Locking Nut
55K1-048	Cap Self-Locking Nut
STSCC002-08	Cap Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-222-2989?

The FSCG of the NSN 5310-00-222-2989 is 5310

Does the NSN 5310-00-222-2989 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-222-2989 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 5310-00-222-2989 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-222-2989 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 5310-00-222-2989 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Wed, Jul 9, 1969