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4820-01-253-4637

Valve Seat

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Official Item Classification

Name
Valve Seat
(NSN) Nationale Lagernummer
4820-01-253-4637
(FSG) Federal Supply Group
48 Valves
(FSC) Bundesversorgungsklassifizierung
4820 Nicht angetriebene Ventile
(INC) Artikelbezeichnung Code
22113
(FIIG) Leitfaden zur Identifizierung von Bundesartikeln
A15500
Datum
04/18/1987 (vor 39 Jahren)

0.344 inches nominal single threaded portion thread length, 0.672 inches nominal flange diameter, 3a single threaded portion thread class, 0.094 inches nominal flange seat to disk end height, 0.594 inches nominal under flange height

Specs & Compatibility

Thread-Klasse

3a single threaded portion

Gewindelänge

0.344 inches nominal single threaded portion

Durchmesser des Flansches

0.672 inches nominal

Höhe des Flanschsitzes bis zum Scheibenende

0.094 inches nominal

Untere Flanschhöhe

0.594 inches nominal

Härtegrad

40.0 rockwell c minimum and 45.0 rockwell c maximum overall

Nenngewindegröße

0.500 inches single threaded portion

Form der Sitzfläche

flat

Abgestufter Innendurchmesser des Körpers

0.201 inches nominal third step

Abgestufter Innendurchmesser des Körpers

0.313 inches nominal first step

Abgestufter Innendurchmesser des Körpers

0.316 inches nominal second step

Besondere Merkmale

0.375 in. across flats,0.156 in. lg hex wrenching feature flange end; four 0.062 in. dia holes 90 deg apart drilled thru body perpendicular to bore between thd portion and flange

Material

steel comp 4140 overall

Stilbezeichnung

threaded flanged

Gewindeserienbezeichnung

unf single threaded portion

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0022113

Related Hardware Products

Teilenummer Beschreibung
035-16231 Valve Seat
35-16231 Valve Seat
35-16231Z Valve Seat

Häufig gestellte Fragen

What is the FSCG of the NSN 4820-01-253-4637?
The FSCG of the NSN 4820-01-253-4637 is 4820
Does the NSN 4820-01-253-4637 have a Schedule B code assigned?
Yes, the Schedule B code is 8481909090
Does NSN 4820-01-253-4637 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 4820-01-253-4637 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-253-4637 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 4820-01-253-4637 was assigned to the Federal Catalog?
It was assigned vor 39 Jahren, on Sat, Apr 18, 1987