Home · FSC 4820 Valves, Nonpowered · NSN 4820-01-561-7746

NSN 4820-01-561-7746 — Valve,Flow Control

NIIN 01-561-7746 · unit of issue EA · AAC D (stocked, centrally managed (dla)) · source of supply SMS

NSN 4820-01-561-7746 is the national stock number for a valve,flow control in federal supply class 4820 (Valves, Nonpowered). It cross-references to 2 manufacturer part numbers from 1 CAGE code, including Parker Hannifin Corp; the primary is 198-16-19.5. The federal catalog ties it to the C-135. The unit of issue is EA and the FLIS list price is $4,709.59.

The U.S. government has bought this item 17 times on record, 4 of them in the last 24 months, most recently on June 22, 2026 at $3,863.30 each from Mid-State Aerospace Inc. The median unit price paid over 36 months is $3,329.85. 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 1 CAGE

open solicitations, all agencies

government buys in 24 months · median $3,329.85

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
198-16-19.5	98441	Parker Hannifin Corp	3 · Design control (vendor)	9 · Reference only
W198-16-19.5	98441	Parker Hannifin Corp	3 · Design control (vendor)	2 · Fully interchangeable

Government demand

Nothing open right now. Last government buy Jun 22, 2026. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Jun 22, 2026	Mid-State Aerospace Inc 4W876	30	$3,863.30	Dla	SPE7MC26V3318
Apr 30, 2026	Aero-Dyne Supply Co., Inc. 40350	28	$3,904.86	Dla	SPE7M026V3344
Dec 20, 2024	Mid-State Aerospace Inc 4W876	39	$3,297.00	Dla	SPE7MC25V1738
Nov 25, 2024	Mid-State Aerospace Inc 4W876	26	$3,302.84	Dla	SPE7MC25V1206
Jul 2, 2024	Mid-State Aerospace Inc 4W876	33	$3,370.25	Dla	SPE4A524V2341
Feb 23, 2024	Aero-Dyne Supply Co., Inc. 40350	39	$3,329.85	Dla	SPE4A524V1364
Oct 26, 2023	Aero-Dyne Supply Co., Inc. 40350	30	$3,107.40	Dla	SPE4A524P0764
Jul 12, 2023	Aero-Dyne Supply Co., Inc. 40350	38	$3,132.50	Dla	SPE4A523P4599
Mar 14, 2023	Mid-State Aerospace Inc 4W876	50	$2,952.28	Dla	SPE4A523P2760
Dec 19, 2022	Aero-Dyne Supply Co., Inc. 40350	27	$2,563.01	Dla	SPE4A523P1373
Aug 4, 2022	Aero-Dyne Supply Co., Inc. 40350	27	$2,468.85	Dla	SPE4A522P8646
May 10, 2022	Aero-Dyne Supply Co., Inc. 40350	60	$2,332.95	Dla	SPE4A122V0445
Feb 7, 2022	Aero-Dyne Supply Co., Inc. 40350	4	$2,345.80	Dla	SPE4A522P4326
Oct 28, 2021	Aero-Dyne Supply Co., Inc. 40350	30	$2,464.85	Dla	SPE4A622V2935
Aug 12, 2019	Aero-Dyne Supply Co., Inc. 40350	39	$3,298.95	Dla	SPE4A419V8129
May 30, 2019	Aero-Dyne Supply Co., Inc. 40350	36	$3,259.55	Dla	SPE7MC19P4749
Jun 8, 2017	Aero-Dyne Supply Co., Inc. 40350	22	$1,581.60	Dla	SPE7MC17P4581

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 17 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 198-16-19.5.

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

DLA management data

FLIS unit price: $4,709.59
Unit of issue: EA
Acquisition advice: D — Stocked, centrally managed (DLA)
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Flange Diameter: INCHES 2.375
End Connection Quantity: 2
End Item Identification: C-135 AIRCRAFT
Valve Operation Method: HYDRAULIC
Connection Type: FLANGE, ROUND W/HOLES
Maximum Operating Temp And Media For Which Designed: FAHRENHEIT HYDRAULIC FLUID, PETROLEUM BASE 225.0
Face To Face Distance: INCHES 6.562
Part Name Assigned By Controlling Agency: INSTALLATION DRAWING FLOW REGULATOR 1 INCH TUBE
Pressure Class: POUNDS PER SQUARE INCH (PSI) 3000.0
Proprietary Characteristics: PACS

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.