Boss Reducer

Model / MPN: AS1820 | NSN: 4730-00-684-3528

A straight fitting having a boss connection of a different size at each end. Both connections have external or internal machine threads (straight threads other than pipe or hose series) and are designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. Excludes bushing (as modified).

Product Details

NATO Stock Number

4730-00-684-3528

Sold in multiples of

1 EA

DEMIL

Thread Class

3a all ends

Reducer Type

Concentric

Connection Style

External seat for gasket seal (boss) all ends

Connection Type

Threaded external boss all ends

Thready Qty Per Inch (tpi)

20 2nd end

Thread Size

0.438 inches 2nd end

Thread Size

0.875 inches 1st end

Nominallength

1.438 inches

Material

Steel comp 1137 or steel comp 1141

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, class 2 federal specification single treatment response

Thread Series Designator

Unjf all ends

Specification Data

96906-ms21916 government standard

AS182 Series Parts

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

AS1820 Cross Reference

AS21916
MS21916-10-4
MS21916-10-4