Home · FSC 4320 Power And Hand Pumps · NSN 4320-01-199-2251

NSN 4320-01-199-2251 — Seal Assembly,Shaft,Spring Loade

NIIN 01-199-2251 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 5 government buys since 2020

The government has bought this item about every 7 months (regular, gaps vary ±45%). Last buy Dec 8, 2022. If the rhythm holds, the next one falls between Mar 30, 2023 and Nov 9, 2023: a buy is overdue by the usual rhythm. 1 solicitation is open right now.

How well this works: for regular items, "next buy about one typical gap after the last, give or take 121 days" caught the actual next buy 42% of the time across 15,552 past buys, against 22% for a fixed "one year later" guess. A rhythm, not a schedule: DLA buys when stock and demand say so. Every item due for a buy now.

Used on: F/A-18 Hornet and Super Hornet · all platforms

NSN 4320-01-199-2251 is the national stock number for a seal assembly,shaft,spring loade in federal supply class 4320 (Power And Hand Pumps). It cross-references to 3 manufacturer part numbers from 2 CAGE codes, including Stein Seal Company, Nimikkeistokeskus Ncb Finland; the primary is 10110579. The federal catalog ties it to the F/A-18 Hornet and Super Hornet. The unit of issue is EA and the FLIS list price is $4,257.30.

The U.S. government has bought this item 10 times on record, most recently on December 8, 2022 at $2,175.66 each from Stein Seal Company. 1 solicitation is open right now, the soonest due October 6, 2026 for 80 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 solicitation, all agencies

government buys in 24 months

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
SSCY121126169	03673	Stein Seal Company	3 · Design control (vendor)	2 · Fully interchangeable
SSCY72026169	03673	Stein Seal Company	5 · Secondary reference	9 · Reference only
10110579	A486G	Nimikkeistokeskus Ncb Finland	6	9 · Reference only

Government demand

Open DLA RFQs (DIBBS)

SPE7M126U6231 · 80 EA · due Oct 6, 2026 · N · AMSC D · DIBBS

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Dec 8, 2022	Stein Seal Company 03673	62	$2,175.66	Dla	SPE7M123P1947
Mar 18, 2022	Stein Seal Company 03673	19	$2,133.00	Dla	SPE7MC22V5474
Oct 25, 2021	Stein Seal Company 03673	23	$2,046.00	Dla	SPE7MC22V1029
Jul 1, 2021	Stein Seal Company 03673	26	$2,012.00	Dla	SPE7MC21V9285
Jun 26, 2020	Stein Seal Company 03673	38	$1,993.00	Dla	SPE7M120F493N
Dec 30, 2015	Stein Seal Company 03673	24	$1,906.00	Dla	SPE7M016V4182
Oct 10, 2014	Stein Seal Company 03673	36	$1,805.90	Dla	SPE7M115M0510
Apr 10, 2014	Stein Seal Company 03673	41	$1,750.00	Dla	SPE7M314M3359
Sep 9, 2013	Stein Seal Company 03673	80	$1,698.00	Dla	SPE7M313M2718
Apr 23, 2009	Stein Seal Company 03673	29	$1,550.25	Dla	SPM7M309V3749

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 10 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 10110579.

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

DLA management data

FLIS unit price: $4,257.30
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

End Item Identification: F-18 HORNET
General Characteristics Item Description: CONSISTS OF; ONE OF P/N SSCY 7202-1 HOUSING,SEAL (ALUMINUM 2024 T851); ONE OF P/N SSCY 6598-2 PLATE,BACK (ALUMINUM 5052 H32); ONE OF P/N SSCY 6239-3 RING,RETAINING (STEEL,CORROSION RESISTING AISI 302)

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.