Acquisition method (AMC)
1
FSC 3110 × BEARING,ROLLER,CYLINDRICAL
BEARING,ROLLER,CYLINDRICAL
3110-00-728-3831 FSC 3110
NSN 3110-00-728-3831 (also written 3110007283831; NIIN 00-728-3831) is a bearing, roller, cylindrical in Federal Supply Class 3110, Bearings, Antifriction, Unmounted. 5 manufacturer part numbers from 4 suppliers are on record. No purchases are on record yet.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
B
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC B: must be bought from the sources named on a source control or selected item drawing. 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 |
|---|---|
| INTERNAL CLEARANCE AKVV | INCHES MINIMUM RADIAL 0.0044 AND INCHES MAXIMUM RADIAL 0.0052 |
| SURFACE FINISH AGYE | GROUND |
| RETAINER FABRICATION METHOD AGYF | MACHINED |
| OVERALL OUTSIDE DIAMETER ADGA | MILLIMETERS NOMINAL 144.0 |
| OUTER RING WIDTH AGVT | MILLIMETERS NOMINAL 24.0 |
| MATERIAL MATT | OUTER RING STEEL |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | INNER RING MFR REF 1ST MATERIAL RESPONSE WA-725,97497 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OUTER RING MFR REF 2ND MATERIAL RESPONSE WA-725,97497 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | ROLLER MFR REF 3RD MATERIAL RESPONSE WA-725,97497 |
| MATERIAL MATT | RETAINER COPPER ALLOY |
| MATERIAL MATT | ROLLER STEEL |
| BORE SHAPE AGZD | STRAIGHT |
| MATERIAL MATT | INNER RING STEEL |
| LOCATING FEATURE AGZF | NONLOCATING |
| BORE DIAMETER ABXV | MILLIMETERS NOMINAL 108.0 |
| INNER RING WIDTH AGVU | MILLIMETERS NOMINAL 20.0 |
| STANDARD TOLERANCE DESIGNATION CTFZ | RBEC NO.5 |
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 |
|---|---|---|
| 559597 | 38443 | SKF USA INC. |
| 559597 | 77445 | RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY |
| 644478 | 77445 | RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY |
| 770632 | 21335 | TIMKEN CO DIV THE TIMKEN COMPANY |
| 770632 | 78118 | MPB CORPORATION DBA MPB CORP |
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
—
—
Last purchased
—
Purchase records
—
Total demand
—
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.
No related contract actions on record.
Demand history
Every solicitation we've indexed for this NSN, open and closed — 2 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
Buying rhythm
How often does the government buy this item, and how long since the last time? Every solicitation and award on one line.
Dot size shows quantity. A faint bar joins a solicitation to the award made against it.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-27-T-5642 | Oct 21, 2026 | Oct 28, 2026 | 49 | Expired | View at DIBBS → |
| SPE4A6-26-T-29KV | Sep 15, 2026 | Sep 22, 2026 | 19 | Expired | View at DIBBS → |
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.
- Full methodology →
Cite this page
Citation
NSN Explorer. "BEARING,ROLLER,CYLINDRICAL." nsnexplorer.com, https://nsnexplorer.com/nsn/3110-00-728-3831/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/3110-00-728-3831/