Home · NSN 01-173-4165

NSN 01-173-4165 — Seat,Valve

NIIN 01-173-4165 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

NSN 01-173-4165 is the national stock number for a seat,valve. It cross-references to 2 manufacturer part numbers from 1 CAGE code, including Trac Regulator Co., Inc.; the primary is 349. The unit of issue is EA and the FLIS list price is $742.89.

No government purchase of this stock number is on our record yet. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.

2

part numbers from 1 CAGE

0

open solicitations, all agencies

0

government buys in 24 months

0

sellers with confirmed stock

Watch NSN 01-173-4165: an email the morning the government solicits or buys it, or an AD names it. Free.
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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part numberCAGEManufacturerReferenceVariation
349-0055378Trac Regulator Co., Inc.3 · Design control (vendor)2 · Fully interchangeable
34955378Trac Regulator Co., Inc.5 · Secondary reference9 · Reference only

Government demand

Nothing open right now. Watch this NSN and we will email you when it is solicited.

What the government paid

No government purchase on record for this NSN.

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices.

Sellers with confirmed stock

No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on 349.

Request 349

No account needed. Goes to the sellers who carry this number or its family.

Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price
$742.89
Unit of issue
EA
Acquisition advice
J — Not stocked, central procurement
Source of supply
SMS
Effective
Oct 1, 2026

Item characteristics

Thread Class
2A
Thread Length
SINGLE THREADED PORTION INCHES NOMINAL 0.360
Flange Diameter
INCHES NOMINAL 1.250
Flange Seat To Disk End Height
INCHES NOMINAL 0.375
Under Flange Height
INCHES NOMINAL 1.813
Thread Quantity Per Inch
20
Nominal Thread Size
SINGLE THREADED PORTION INCHES 1.125
Seating Surface Shape
FLAT
Body Stepped Inside Diameter
SECOND STEP INCHES NOMINAL 0.750
Body Stepped Inside Diameter
FIRST STEP INCHES NOMINAL 0.755
Criticality Code Justification
FEAT
Special Features
WEAPON SYSTEM ESSENTIAL
Material
OVERALL STEEL COMP 303
Thread Series Designator
SINGLE THREADED PORTION UN

Related stock numbers

Other NSNs filed under the same part numbers.

About this page

An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.

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