NSN catalog · 90,963 partsCatalog › Valves › FSC 4820 › 4820-00-021-2391
Safety Relief Valve P/N N30073FB
In stock — 2 on our U.S. shelfNSN 4820-00-021-2391 4820000212391 NIIN 000212391
SECO Parts has 2 in stock of NSN 4820-00-021-2391 — Safety Relief Valve — on our own shelf in Augusta, GA: a stocking supplier, not a broker. Government catalog (FEDLOG) price: $312.67 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.
One part, one step — answered within one business day. Several parts? and send them together.
- Ships in 1–3 business days from Augusta, GA
- 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
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 2 |
| Total | 2 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
4820-00-021-2391 000212391 N30073FB 11588684 N-300-FB N-30073-A
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.
More to tell us? Need-by date, ship-to, your own RFQ document
Specifications
- Nominal pipe size accommodated
- First End Inches 0.500
- Thread direction
- First End Right-Hand
- Connection type
- First End Threaded Internal Pipe
- Mounting facility
- Threaded Fastener
- Thread quantity per inch
- 14
- Nominal thread size
- First End Inches 0.500
- First connection face to centerline distance
- Inches 1.460
- Second connection face to centerline distance
- Inches 1.460
- Center to center distance
- Inches 1.880
- Material
- Body Steel
- Thread series designator
- First End NPTF
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
N30073FB 11588684 N-300-FB N-30073-A
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 2 on the shelf |
| Unit of issue | EA each |
| Demilitarization code | A Demilitarization not required — non-munitions-list item |
| 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 4820-00-021-2391?
NSN 4820-00-021-2391 (4820000212391) — Safety Relief Valve: SECO Parts has 2 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 4820-00-021-2391 available?
SECO Parts has 2 in stock in Augusta, GA — order or request a quote below.
How much does NSN 4820-00-021-2391 cost?
The government catalog (FEDLOG) lists NSN 4820-00-021-2391 at $312.67 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 part numbers cross-reference to NSN 4820-00-021-2391?
Part numbers that cross-reference this NSN include N30073FB, 11588684, N-300-FB, N-30073-A. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names VALVE,SAFETY RELIEF. Same name is not the same part: check the part numbers.