Acquisition method (AMC)
1
FSC 3110 × BEARING,BALL,ANNULAR
BEARING,BALL,ANNULAR
3110-01-542-1975 FSC 3110
NSN 3110-01-542-1975 (also written 3110015421975; NIIN 01-542-1975) is a bearing, ball, annular in Federal Supply Class 3110, Bearings, Antifriction, Unmounted. 3 manufacturer part numbers from 3 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 |
|---|---|
| BORE DIAMETER ABXV | INCHES NOMINAL 1.8500 |
| END ITEM IDENTIFICATION AGAV | MV-22 AIRCRAFT |
| INNER RING WIDTH AGVU | INCHES NOMINAL 0.7875 |
| CRITICALITY CODE JUSTIFICATION CRTL | AGAV |
| CONTACT ANGLE CTHY | DEGREES MINIMUM 23.5 AND DEGREES MAXIMUM 26.5 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | BEARING,BALL |
| SPECIAL FEATURES FEAT | RACE MATERIAL: VIM-VAR M-50 PER AMS 6491; RACE HARDNESS: RC 60-64; BALL MATERIAL: VIM-VAR M-50 PER AMS 6491; BALL HARDNESS: RC 60-64; CAGE MATERIAL: ALLOY STEEL 4340 PER AMS 6415 OR AMS 6414;CAGE HARDNESS: RC 28-40;CAGE PLATING MATERIAL: SILVER PER AMS 2412;CAGE PLATING THICKNESS: .001-.002" AMS 6491 |
| MATERIAL MATT | BALL STEEL |
| MATERIAL MATT | CAGE STEEL COMP 4340 |
| MATERIAL MATT | RETAINING PLATE SILVER |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | BALL ASSN STD ALL MATERIAL RESPONSES A-S 6491 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | RETAINER ASSN STD ALL MATERIAL RESPONSES A-S 2412 |
| PRECIOUS MATERIAL AND LOCATION PMLC | SILVER CAGE LATING -ATERIAL |
| PRECIOUS MATERIAL PRMT | SILVER |
| PROPRIETARY CHARACTERISTICS PRPY | PACS |
| SPECIAL TEST FEATURES SPCL | CAGE OUTSIDE DIAMETER CLEARANCE: .006-.011", CAGE POCKET TO BALL DIAMETRAL CLEARANCE: .010-.017",CAGE BALL POCKET MISLOCATION TO TRUE POSITION: .008 DIAMETER MAXIMUM; CAGE END FACE PARALLELISM: .004" MAXIMUM, OUTER RACE SHOULDER DIAMETER: 1.622-1.624";INNER RACE SHOULDER DIAMETER: 1.251-1.253";RACEWAY CORNER RADII AT SHOULDER AND SPLIT FACE: .003-.008";INNER RACE SHOULDER OUTSIDE DIAMETER TO BORE RUNOUT: .0005" FIM; OUTER RACE SHOULDER INTERNAL DIAMETER TO OUTSIDE DIAMETER RUNOUT: .0005" FIM;NUMBER OF BALLS: 10; BALL DIAMETER/GRADE: .375/10";PITCH DIAMETER (REF): 1.417";END PLAY: .0055-.11" (SHIM OUT);SHIM THICKNESS: .0016-.0024"; INTERNAL RADIAL CLEARANCE: .0017-.0025" (SHIM OUT) |
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 |
|---|---|---|
| 4502138 | 55820 | RTX CORPORATION DIV PRATT & WHITNEY |
| 4502138 | 70854 | SCHAEFFLER AEROSPACE USA CORP DIV SCHAEFFLER AEROSPACE USA CORPORATION |
| 4502138 | 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
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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 — 1 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-26-T-33WN | Sep 21, 2026 | Sep 28, 2026 | 46 | 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,BALL,ANNULAR." nsnexplorer.com, https://nsnexplorer.com/nsn/3110-01-542-1975/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/3110-01-542-1975/