Acquisition method (AMC)
3
FSC 4820 × DIAPHRAGM,VALVE,FLAT
DIAPHRAGM,VALVE,FLAT
4820-00-035-9897 FSC 4820
NSN 4820-00-035-9897 (also written 4820000359897; NIIN 00-035-9897) is a diaphragm, valve, flat in Federal Supply Class 4820, Valves, Nonpowered. 5 manufacturer part numbers from 1 supplier are on record. It was last purchased in Sep 2026.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
C
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC C: needs engineering source approval; other sources must qualify first. The codes describe the item's status on record, not any one solicitation. What the codes mean
What it is — can you make it?
Dimensions, the FLIS specification requirements, and the manufacturer part numbers already qualified against this NSN.
Specifications
From the federal catalog (DLA FLIS / PUB LOG) — what your part has to meet. Cited specification documents can be looked up in ASSIST Quick Search ↗, DoD's public spec repository — copy the document number in.
| Requirement | Value |
|---|---|
| HOLE DIAMETER AAUB | INCHES NOMINAL 0.738 |
| OUTSIDE DIAMETER ABHE | INCHES NOMINAL 11.000 |
| BOLT CIRCLE DIAMETER ABKG | INCHES NOMINAL 9.625 |
| MATERIAL THICKNESS ABPX | INCHES NOMINAL 0.150 |
| CENTER HOLE DIAMETER ADYT | INCHES NOMINAL 0.722 |
| BOLT HOLE QUANTITY AECS | 8 |
| MATERIAL MATT | RUBBER SYNTHETIC |
| STYLE DESIGNATOR STYL | — |
Manufacturer part numbers
Commercial part numbers cross-referenced to this NSN in the federal catalog — the parts that have been accepted as satisfying this stock number, and who makes them.
| Part number | CAGE | Manufacturer |
|---|---|---|
| 86807 | 86184 | GRISWOLD INDUSTRIES DBA CLA-VAL CO |
| 86807F | 86184 | GRISWOLD INDUSTRIES DBA CLA-VAL CO |
| C731-4 | 86184 | GRISWOLD INDUSTRIES DBA CLA-VAL CO |
| C8184 | 86184 | GRISWOLD INDUSTRIES DBA CLA-VAL CO |
| C8184-13 | 86184 | GRISWOLD INDUSTRIES DBA CLA-VAL CO |
What it pays — so you can quote
The government's own price and demand record for this NSN — what past awards cleared at, so you know where to land your quote.
Latest unit price
—
Purchases
0
Total spend
—
Sep 24, 2026
Last purchased
1 · 1.0/yr
Purchase records
$1,639
Total demand
$1,639
Latest award total
Purchase history
No priced purchases on record for this NSN yet.
Related contract actions
Contract action totals, not unit prices — obligation amounts from USAspending for related awards, shown for context only. These do not appear on the price chart above.
| Action date | Award # | Recipient | Agency | Obligation |
|---|---|---|---|---|
| Sep 24, 2026 | SPE7MX26D0044/SPE7MX26F072S ↗ | GRISWOLD INDUSTRIES DBA CLA-VAL CO | — | $1,639 |
Demand history
Who wins this item
Does one supplier win this every time, and are the winners on the listed-source list? One dot per award.
- Award in the last 2 years
- Older award
GRISWOLD INDUSTRIES DBA CLA-VAL CO
last award Sep 2026
GRISWOLD INDUSTRIES DBA CLA-VAL CO won the only award on record.
Open RFQs on DIBBS → DIBBS award history ↗
About this data
- Unit prices: DLA DIBBS award records — every row links to its government record.
- AMSC: latest observed value from DIBBS solicitation history as of Oct 10, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-09-27.
- Full methodology →
Cite this page
Citation
NSN Explorer. "DIAPHRAGM,VALVE,FLAT." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-00-035-9897/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-00-035-9897/