NSN catalog · 90,963 partsCatalog › Bearings › FSC 3120 › 3120-00-042-0444
Ball Airframe Bearing P/N MS27642-21
In stock — 2 on our U.S. shelfNSN 3120-00-042-0444 3120000420444 NIIN 000420444
SECO Parts has 2 in stock of NSN 3120-00-042-0444 — Ball Airframe Bearing — on our own shelf in Augusta, GA: a stocking supplier, not a broker. Typical price: $55–$105 each — an estimate from the government catalog price and what we have charged for similar parts. Not a quote: request one for your price. Quote lines carry a $50 minimum.
One part, one step — answered within one business day. Several parts? and send them together.
- Ships in 1–3 business days from Augusta, GA
- Certificate of Conformance on request
- PO, GPC & major cards
- $50 minimum order — smaller requests still get a quote
- 30-day returns · terms
- FLIS item name
- BEARING,BALL,AIRFRAME
- SECO description
- BEARING ASSY
- Federal supply class
- FSC 3120 — Bearings, Plain, Unmounted
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 2 |
| Total | 2 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
3120-00-042-0444 000420444 MS27642-21 AS27642 MS27642 KP21B 9408308402 MA27642-21 KP21BFS464 KP21BANG25 KP21BFS10160 KP21BFS50160
Get a quote
Build a list across as many parts as you need, send it once, get one quote back — answered within one business day, usually the same day. POs and GPC welcome. $50 minimum order.
More to tell us? Need-by date, ship-to, your own RFQ document
Specifications
- Bore diameter
- 1.3130 in (nominal)
- Overall outside diameter
- 2.0625 in (nominal)
- Outer ring width
- 0.3750 in (nominal)
- Inner ring width
- 0.4370 in (nominal)
- Seal quantity
- 2
- Bearing seal type
- Contact
- Load direction
- Radial
- Standard tolerance designation
- Afbma STD Tolerance for Airframe Ball Bearings
- Special features
- 80 Pct.full of MIL-G-81322,Heat Treat Rings and Balls to Rockwell C 60 to 66 and Stabilized for Operation AT 250 Deg. F,Radial and Lateral Eccentricity,Inner Ring 0.0010 In. Outer Ring 0.0016 In.,0.0003-0.0010 In. Radial Clearance
- Lubrication material document and classification
- MIL Spec Single Material Response -IL-G-81322
- Material
- Ball Steel Comp E51100 or Steel Comp E52100
- Material
- Inner Ring Steel Comp E52100
- Material
- Outer Ring Steel Comp E52100
- Material
- Retainer Steel Corrosion Resisting
- Material
- Seal Plastic Polytetrafluoroethylene
- Material document and classification
- Ball Fed STD All Material Responses 66
- Material document and classification
- Inner Ring Fed STD Single Material Response 66
- Material document and classification
- Outer Ring Fed STD Single Material Response 66
- Material document and classification
- Seal Assn STD Single Material Response A-S 3652 or Assn STD Single Material Response A-S 3666
- Surface treatment
- Exposed Surfaces AS Mounted Cadmium
- Surface treatment document and classification
- Exposed Surfaces AS Mounted Fed Spec Single Treatment Response QQ--416,TY 1,CL 2
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
MS27642-21 AS27642 MS27642 KP21B 9408308402 MA27642-21 KP21BFS464 KP21BANG25 KP21BFS10160 KP21BFS50160 6026-7055-4 6026-7055 MS27642KP21B AN202KP21BANG25 AN202KP21B MS20202KP21B
Also referenced as
K21B 10346576
Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual. They find the item; confirm the current part number when you order.
Shown for identification only. SECO can quote against any of these numbers.
Logistics data
| Source of supply | SMS DLA Land and Maritime, Columbus, Ohio |
| Acquisition advice code | Z Insurance/numeric stockage objective — held by the government as insurance stock for contingencies, not for routine issue. SECO has 2 on the shelf |
| Unit of issue | EA each |
| Demilitarization code | A Demilitarization not required — non-munitions-list item |
| Controlled inventory code | U Unclassified |
| Hazardous material indicator | N No hazardous material |
Source: public FLIS/PUB LOG cataloging data.
Why buy from SECO
These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.
In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered
FAQ
What is NSN 3120-00-042-0444?
NSN 3120-00-042-0444 (3120000420444) — Ball Airframe Bearing: SECO Parts has 2 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for ball airframe bearing in federal supply class 3120 (Bearings, Plain, Unmounted).
Is NSN 3120-00-042-0444 available?
SECO Parts has 2 in stock in Augusta, GA — order or request a quote below.
How much does NSN 3120-00-042-0444 cost?
SECO typically prices parts like NSN 3120-00-042-0444 at $55–$105 each: an estimate from the government catalog price and what SECO has charged for similar parts. It is not a quote — request one for your price, usually answered the same business day. Quote lines carry a $50 minimum.
What part numbers cross-reference to NSN 3120-00-042-0444?
Part numbers that cross-reference this NSN include MS27642-21, AS27642, MS27642, KP21B, 9408308402, MA27642-21, KP21BFS464, KP21BANG25. It is also referenced by older, superseded or advisory numbers: K21B, 10346576. SECO can quote against any of them.