Acquisition method (AMC)
1
FSC 3120 × BEARING,PLAIN,SELF-ALIGNING
BEARING,PLAIN,SELF-ALIGNING
3120-00-975-4984 FSC 3120
NSN 3120-00-975-4984 (also written 3120009754984; NIIN 00-975-4984) is a bearing, plain, self-aligning in Federal Supply Class 3120, Bearings, Plain, Unmounted. 8 manufacturer part numbers from 7 suppliers 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 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 |
|---|---|
| LUBRICATION FEATURE CTLM | OUTER RACE MEMBER PERFORATION |
| LUBRICATION FEATURE CTLM | INTERNAL OUTER MEMBER GROOVE |
| LUBRICATION FEATURE CTLM | INTERNAL INNER MEMBER GROOVE |
| LUBRICATION FEATURE CTLM | INNER MEMBER PERFORATION |
| HARDNESS RATING CQFM | INNER MEMBER ROCKWELL C NOMINAL 56.0 |
| HARDNESS RATING CQFM | OUTER RACE MEMBER ROCKWELL C MINIMUM 30.0 AND ROCKWELL C MAXIMUM 42.0 |
| BORE DIAMETER ABXV | INCHES MINIMUM 0.2495 AND INCHES MAXIMUM 0.2500 |
| OUTER MEMBER OUTSIDE DIAMETER AGGF | INCHES MINIMUM 0.6557 AND INCHES MAXIMUM 0.6562 |
| OUTER MEMBER WIDTH AGGH | INCHES MINIMUM 0.2450 AND INCHES MAXIMUM 0.2550 |
| INNER MEMBER WIDTH AGGJ | INCHES MINIMUM 0.3380 AND INCHES MAXIMUM 0.3430 |
| STATIC RADIAL LOAD RATING AGKP | POUNDS 7300 |
| MATERIAL MATT | INNER MEMBER STEEL COMP E52100 |
| MATERIAL MATT | LUBRICATION GREASE AND LUBRICANT DRY FILM |
| MATERIAL MATT | OUTER RACE MEMBER STEEL |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | LUBRICATION MIL SPEC SINGLE MATERIAL RESPONSE -IL-G-23827 |
| SURFACE TREATMENT SFTT | INNER MEMBER CHROMIUM |
| SURFACE TREATMENT SFTT | OUTER RACE MEMBER CADMIUM |
| STYLE DESIGNATOR STYL | — |
| TEST DATA DOCUMENT TEST | SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). 81349--IL-B-5628 |
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 |
|---|---|---|
| 55171 | 09455 | RBC TRANSPORT DYNAMICS CORP DIV RBC TRANSPORT DYNAMICS |
| GB14B4 | 02758 | U S BEARINGS |
| GB14B4 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
| GE14B4 | 02758 | U S BEARINGS |
| HSBG4-12 | 97613 | SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS |
| HSBG4SP14 | 15860 | NEW HAMPSHIRE BALL BEARINGS INC DIV ASTRO DIVISION |
| LHAE4G | 73134 | ROLLER BEARING COMPANY OF AMERICA, INC. |
| RSPG4A | 99528 | RADIAL BEARING CORPORATION DBA RADIAL BEARING CORP OF CONNECTICU DIV RADIAL BEARING LLC |
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
$242.00
Purchases
1
Total spend
$1,452
Sep 22, 2026
Last purchased
2 · 2.0/yr
Purchase records
$2,904
Total demand
$242.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Sep 22, 2026 | 6 | $242.00 | $1,452 | AVIARMS SUPPORT CORP (58985) | Unknown | Source ↗ |
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 22, 2026 | SPE4A626P0L89 ↗ | AVIARMS SUPPORT CORP | — | $1,452 |
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.
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 Sep 2026
NEW HAMPSHIRE BALL BEARINGS INC DIV ASTRO DIVISION
no award yet
no awards on record
Listed source NORTHROP GRUMMAN SYSTEMS CORPORATION
no award yet
no awards on record
Listed source RADIAL BEARING CORPORATION DBA RADIAL BEARING CORP OF CONNECTICU DIV RADIAL BEARING LLC
no award yet
no awards on record
Listed source RBC TRANSPORT DYNAMICS CORP DIV RBC TRANSPORT DYNAMICS
no award yet
no awards on record
Listed source ROLLER BEARING COMPANY OF AMERICA, INC.
no award yet
no awards on record
Listed source SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS
no award yet
no awards on record
Listed source U S 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.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-26-T-26DY | Sep 3, 2026 | Sep 10, 2026 | 6 | 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.
- Data last refreshed: 2026-10-05.
- Full methodology →
Cite this page
Citation
NSN Explorer. "BEARING,PLAIN,SELF-ALIGNING." nsnexplorer.com, https://nsnexplorer.com/nsn/3120-00-975-4984/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/3120-00-975-4984/