Home · FSC 4820 Valves, Nonpowered · NSN 4820-01-484-0543

NSN 4820-01-484-0543 — Valve,Ball

NIIN 01-484-0543 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 4820-01-484-0543 is the national stock number for a valve,ball in federal supply class 4820 (Valves, Nonpowered). It cross-references to 2 manufacturer part numbers from 2 CAGE codes, including Electric Boat Corporation, Naval Sea Systems Command; the primary is 2643-820-88 ASSY B. The unit of issue is EA and the FLIS list price is $116,928.30.

The U.S. government has bought this item 2 times on record, 2 of them in the last 24 months, most recently on June 10, 2026 at $77,356.00 each from Inflo Technique Inc.. The median unit price paid over 36 months is $77,356.00. 2 solicitations are open right now, the soonest due October 8, 2026 for 4 EA. 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.

part numbers from 2 CAGEs

open solicitations, all agencies

government buys in 24 months · median $77,356.00

sellers with confirmed stock

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Cross-references

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

Part number	CAGE	Manufacturer	Reference	Variation
2643-820-88 ASSY B	96169	Electric Boat Corporation	3 · Design control (vendor)	2 · Fully interchangeable
845-7284929 ASSY B	53711	Naval Sea Systems Command	5 · Secondary reference	2 · Fully interchangeable

Government demand

Open DLA RFQs (DIBBS)

SPE7MC26T303C · 4 EA · due Oct 8, 2026 · Y · AMSC G · DIBBS
SPE7MC26T307D · 3 EA · due Oct 9, 2026 · N · AMSC G · DIBBS

What the government paid

Date	Vendor	Qty	Unit cost	Amount	Buyer	Reference
Jun 10, 2026	Inflo Technique Inc. L0V44	11	$77,356.00		Dla	SPE7M126P7407
Aug 25, 2025	Inflo Technique Inc. L0V44	7	$77,356.00		Dla	SPE7MC25P2432

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 2 buys on record in total.

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 2643-820-88 ASSY B.

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

DLA management data

FLIS unit price: $116,928.30
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Nominal Pipe Size Accommodated: ALL ENDS INCHES 3.000
Maximum Operating Temp: SINGLE RESPONSE FAHRENHEIT 150.0
Nominal Length: ALL ENDS INCHES 11.690
Valve Operation Method: MANUAL
Connection Type: ALL ENDS BUTT WELD PIPE
Operating Pressure: SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 7000.0
Material: FLOW CONTROL DEVICE TITANIUM
Material: STEM NICKEL ALLOY
Material: BODY COPPER ALLOY
Material: SEAT PLASTIC ACETAL
Material Document And Classification: FLOW CONTROL DEVICE MIL STD SINGLE MATERIAL RESPONSE -IL-T-9047
Material Document And Classification: BODY ASSN STD SINGLE MATERIAL RESPONSE AST--B369
Material Document And Classification: SEAT NATIONAL SPEC SINGLE MATERIAL RESPONSE DELRIN
Media For Which Designed: SINGLE RESPONSE WATER, SALT

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.