Catalog › Valves › FSC 4820 › 4820-00-930-4074

Safety Relief Valve P/N 11593818

In stock — 8 on our U.S. shelf

NSN 4820-00-930-4074 4820009304074 NIIN 009304074

SECO Parts has 8 in stock of NSN 4820-00-930-4074 — Safety Relief Valve — on our own shelf in Augusta, GA: a stocking supplier, not a broker. Government catalog (FEDLOG) price: $1,241.46 per each — a public reference, not our price. We quote each request, usually the same business day, and surplus parts often quote below or above it.

Export-controlled item (DEMIL Q) — U.S. domestic sale only. Quote only: an end-use statement is required.

Request a quote — end-use statement required

Quotes answered within one business day once the end-use statement is reviewed.

Certificate of Conformance on request
PO, GPC & major cards
$50 minimum order — smaller requests still get a quote
30-day returns · terms

FLIS item name: VALVE,SAFETY RELIEF
SECO description: VALVE, SAFETY RELIEF
Federal supply class: FSC 4820 — Valves, Nonpowered
Used on: M109 Howitzer Family

Availability & condition

Condition	Code	Qty on shelf
New Surplus	NS	8
Total		8

Quantities are live from SECO's inventory system, not estimated.

Also known as: 4820-00-930-4074 009304074 11593818 1757000

Get a quote

Build a list across as many parts as you need, send it once, get one quote back — answered within one business day, usually the same day. POs and GPC welcome. $50 minimum order.

Controlled item. Quote only — no online checkout. Your request must include the end user, the end use, and a U.S.-person certification; SECO reviews each request before quoting.

More to tell us? Need-by date, ship-to, your own RFQ document

Specifications

Nominal thread size: Second End Inches 0.938
Thread quantity per inch: 16
Connection type: Second End Threaded External Tube
Nominal thread size: First End Inches 0.875
Operating pressure: Single Response Pounds Per Square Inch (PSI) Maximum 900.0
Special features: Measures 4.782 In.l X 1.625 In.w X 3.188 In.h.valve Has NO External Control.consists of:Body,P/n 11593812;Plunger,P/n 11593815;Guide,P/n 11593817;Spring,P/n 11593816;Nut,P/n 10905311;Seat,P/n 11593813
Material: Body Steel
Material document and classification: Body MIL Spec Single Material Response -IL-S-13048
Surface treatment: Location Not Otherwise Specified Cadmium
Surface treatment document and classification: Location Not Otherwise Specified Fed Spec Single Treatment Response QQ--416,Class 3,Tye II
Thread series designator: First End Unef
Thread series designator: Second End UN
Thread series designator: Third End UNF
Nominal thread size: Third End Inches 0.500
Connection type: Third End Threaded External Tube
Thread class: 2A
Thread direction: First End Right-Hand
Thread direction: Second End Right-Hand
Thread direction: Third End Right-Hand
Flow control device: Poppet
Disk loading method: Spring
Valve discharge flow rate: Gallons Per Minute 7.0
Connection type: First End Threaded External Boss
Valve operation method: Automatic

From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.

Cross-reference part numbers

11593818 1757000

Shown for identification only. SECO can quote against any of these numbers.

Logistics data

Source of supply	SMS DLA Land and Maritime, Columbus, Ohio
Acquisition advice code	J Not stocked, centrally procured — the government does not stock this item; it is procured only when a requisition arrives. SECO has 8 on the shelf
Unit of issue	EA each
Demilitarization code	Q Export-controlled (CCL) — U.S. domestic sale only
Controlled inventory code	U Unclassified
Hazardous material indicator	N No hazardous material

Source: public FLIS/PUB LOG cataloging data.

Why buy from SECO

These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.

In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered

FAQ

What is NSN 4820-00-930-4074?
NSN 4820-00-930-4074 (4820009304074) — Safety Relief Valve: SECO Parts has 8 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for safety relief valve in federal supply class 4820 (Valves, Nonpowered).

Is NSN 4820-00-930-4074 available?
SECO Parts has 8 in stock in Augusta, GA. This is a controlled item: it is sold by quote only with an end-use statement, to U.S. domestic customers.

How much does NSN 4820-00-930-4074 cost?
The government catalog (FEDLOG) lists NSN 4820-00-930-4074 at $1,241.46 per each. That is a public reference, not SECO's price: SECO quotes each request, usually the same business day, and surplus parts often quote below or above it.

What does NSN 4820-00-930-4074 fit?
The federal catalog lists NSN 4820-00-930-4074 as used on: M109 Howitzer Family.

What part numbers cross-reference to NSN 4820-00-930-4074?
Part numbers that cross-reference this NSN include 11593818, 1757000. SECO can quote against any of them.