Home · FSC 4820 Valves, Nonpowered · NSN 4820-01-516-7697
NSN 4820-01-516-7697 — Seat,Valve
NIIN 01-516-7697 · unit of issue EA · AAC Z (insurance item) · source of supply SMS
NSN 4820-01-516-7697 is the national stock number for a seat,valve in federal supply class 4820 (Valves, Nonpowered). It cross-references to 4 manufacturer part numbers from 1 CAGE code, including Northrop Grumman Systems Corporation; the primary is 4D08637. The unit of issue is EA and the FLIS list price is $67,686.80.
The U.S. government has bought this item 1 time on record, 1 of them in the last 24 months, most recently on September 22, 2026 for $264,993 from Northrop Grumman Systems Corporation. 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.
4
part numbers from 1 CAGE
0
open solicitations, all agencies
1
government buy in 24 months
0
sellers with confirmed stock
Cross-references
Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.
| Part number | CAGE | Manufacturer | Reference | Variation |
|---|---|---|---|---|
| 4D08637-001 | 90099 | Northrop Grumman Systems Corporation | 3 · Design control (vendor) | 2 · Fully interchangeable |
| 6509E59FN16 | 90099 | Northrop Grumman Systems Corporation | 5 · Secondary reference | 2 · Fully interchangeable |
| 4D08637 | 90099 | Northrop Grumman Systems Corporation | D | 9 · Reference only |
| 6509E59 | 90099 | Northrop Grumman Systems Corporation | D | 9 · Reference only |
Government demand
Nothing open right now. Last government buy Sep 22, 2026. Watch this NSN and we will email you when it is solicited.
What the government paid
| Date | Vendor | Qty | Unit cost | Amount | Buyer | Reference |
|---|---|---|---|---|---|---|
| Sep 22, 2026 | Northrop Grumman Systems Corporation 90099 | $264,993 | Dla | SPE4A122G0004 |
Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 1 buy 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 4D08637.
Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.
DLA management data
- FLIS unit price
- $67,686.80
- Unit of issue
- EA
- Acquisition advice
- Z — Insurance item
- Source of supply
- SMS
- Effective
- Jun 1, 2026
Item characteristics
- Flange Diameter
- INCHES NOMINAL 11.606
- Body Outside Diameter
- INCHES NOMINAL 9.992
- Body Inside Diameter
- INCHES NOMINAL 7.919
- Flange Seat To Disk End Height
- INCHES NOMINAL 1.679
- Under Flange Height
- INCHES NOMINAL 2.241
- Seat Angle In Deg
- NOMINAL 30.000
- Seating Surface Shape
- ANGULAR
- Part Name Assigned By Controlling Agency
- SEAT, ASTERN VALVE
- Material
- SEAT STEEL CORROSION RESISTING
Related stock numbers
Other NSNs filed under the same part numbers.
- 01-480-6209 · Strainer Element,Sediment
- 01-480-6211 · Strainer Element,Sediment
- 01-516-7633 · Nozzle,Valve
- 01-516-7636 · Cap,Valve
- 01-516-7641 · Stem,Fluid Valve
- 01-516-7643 · Stem,Fluid Valve
- 01-516-7701 · Seat,Valve
- 01-516-7709 · Divider,Valve Flow
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.
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