Acquisition method (AMC)
3
FSC 3120 × BEARING,PLAIN,SELF-ALIGNING
BEARING,PLAIN,SELF-ALIGNING
3120-01-318-1729 FSC 3120
NSN 3120-01-318-1729 (also written 3120013181729; NIIN 01-318-1729) is a bearing, plain, self-aligning in Federal Supply Class 3120, Bearings, Plain, Unmounted. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Oct 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)
R
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. 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 |
|---|---|
| BORE DIAMETER ABXV | INCHES MINIMUM 1.7492 AND INCHES MAXIMUM 1.7500 |
| OUTER MEMBER OUTSIDE DIAMETER AGGF | INCHES MINIMUM 3.0590 AND INCHES MAXIMUM 3.0600 |
| OUTER MEMBER WIDTH AGGH | INCHES MINIMUM 1.3120 AND INCHES MAXIMUM 1.3220 |
| INNER MEMBER WIDTH AGGJ | INCHES MINIMUM 1.8070 AND INCHES MAXIMUM 1.8120 |
| STATIC RADIAL LOAD RATING AGKP | POUNDS 380000 |
| LUBRICATION FEATURE CTLM | OUTER RACE MEMBER GROOVE AND PERFORATION |
| SPECIAL FEATURES FEAT | OVERSIZE O.D. VERSION OF KWB28-20SGA; USED ON LINK,PIN GUDGEON OF MAINLANDING GEAR OF C5 A/B |
| MATERIAL MATT | LUBRICATION OIL LUBRICATING |
| MATERIAL MATT | INNER MEMBER STEEL COMP E52100 |
| MATERIAL MATT | OUTER RACE MEMBER STEEL COMP 4130 |
| SURFACE TREATMENT SFTT | OUTER RACE MEMBER CADMIUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OUTER RACE MEMBER FED SPEC SINGLE TREATMENT RESPONSE QQ--416 QQ--416 |
| 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 |
|---|---|---|
| KWB28-18 | 97613 | SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS |
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
—
Oct 6, 2026
Last purchased
1 · 1.0/yr
Purchase records
$17,780
Total demand
$17,780
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 |
|---|---|---|---|---|
| Oct 6, 2026 | SPE4A627P1084 ↗ | AVIARMS SUPPORT CORP | — | $17,780 |
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
AVIARMS SUPPORT CORP
last award Oct 2026
SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS
no award yet
no awards on record
Listed source AVIARMS SUPPORT CORP won the only award on record. AVIARMS SUPPORT CORP won without being a listed source.
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: 2026-10-08.
- Full methodology →
Cite this page
Citation
NSN Explorer. "BEARING,PLAIN,SELF-ALIGNING." nsnexplorer.com, https://nsnexplorer.com/nsn/3120-01-318-1729/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/3120-01-318-1729/