Boss Reducer

Model / MPN: 21C1705-18 | NSN: 4730-00-802-2234

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

4730-00-802-2234

Sold in multiples of

1 EA

DEMIL

Thread Class

3a all ends

Reducer Type

Concentric

Maximum Operating Temp

71.0 degrees celsius single response

Connection Style

Flared w/ gasket seal (boss) all ends

Connection Type

Threaded external boss all ends

Thready Qty Per Inch (tpi)

12 all ends

Maximum Operating Pressure

1500.0 pounds per square inch single response

Thread Size

1.312 inches 2nd end

Thread Size

1.625 inches 1st end

Nominallength

2.250 inches

Material

Steel comp 304 or steel comp 316

Material Specification

66, aisi 304/sae 30304 federal standard 1st material response or 66, aisi 326/sae 30316 federal standard 2nd material response

Surface Treatment

Passivate

Surface Treatment Specification

Mil-f-14072, e300, type 2 military specification single treatment response outside

Surface Treatment Specification

Mil-s-5002 military specification 1st treatment response inside and qq-p-35 federal specification 2nd treatment response inside

Thread Series Designator

Un all ends

Specification Data

88044-an919 government standard

21C1705 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.

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21C1705-18 Cross Reference

AS5174
AS4841
AN919-26C
AN919-26C
21C1537-061