Boss Reducer

Model / MPN: 991915 | NSN: 4730-00-187-3588

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

4730-00-187-3588

Sold in multiples of

1 EA

DEMIL

Thread Class

3a all ends

Reducer Type

Concentric

Maximum Operating Temp

275.0 degrees fahrenheit single response

End Application

Aircraft fluid systems

Connection Style

Flared w/ gasket seal (boss) all ends

Connection Type

Threaded external boss all ends

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

0.750 inches 2nd end

Thread Size

0.875 inches 1st end

Nominallength

1.750 inches

Material

Aluminum alloy 2014

Material Specification

Qq-a-225/4 federal specification single material response

Surface Treatment

Anodize

Thread Series Designator

Unf 2nd end

Thread Series Designator

Unjf 1st end

Specification Data

88044-an919 government standard

99191 Series Parts

Solicitations

Solicitation	Description	Qty	UOM	Close Date
SPE7M317T7166	Red Ucer, Boss	1184	EA	08/17/2017
SPE7M320T4882	Reducer, Boss	805	EA	02/03/2020

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

991915 Cross Reference

AN919-150
AS4841
AS5174
332-2031-160
AS5174D1008
AN919-15D
MS24399D16