NSN 3110-01-306-9620 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-306-9620. Manufacturer of record part number: AIR 20-7.
Also searched as3110-01-306-9620 ·
3110013069620 ·
NIIN 013069620 ·
01-306-9620 ·
FSC 3110 Bearings, Antifriction, Unmounted · CAGE 15860 · AIR 20-7 · GB528A1
Nearby stock numbers← 3110-01-306-9375 Bearing, Roller, Rod End
·
3110-01-306-9621 Bearing, Ball, Airframe →
Surface Treatment Document and Classification: QQ-C-320,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OUTER RING
Surface Finish: GROUND
Style Designator: INNER RING, BALL
Material Document and Classification: SAE53100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Overall Outside Diameter: 1.7940 INCHES MINIMUM AND 1.7950 INCHES MAXIMUM IN
Bore Shape: STRAIGHT
Surface Treatment: CHROMIUM OUTER RING
Identification
NSN: 3110-01-306-9620
NIIN: 013069620
FSC: 3110 — Bearings, Antifriction, Unmounted
FSG: 31 — Bearings
Primary part number: AIR 20-7
Manufacturer: New Hampshire Ball Bearings Inc Div Astro Division
General Description
The Ring,bearing,inner, cataloged under National Stock Number 3110-01-306-9620, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is New Hampshire Ball Bearings Inc Div Astro Division. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3110-01-306-9620
Primary Part Number
AIR 20-7
Item Name
Ring,bearing,inner
FSC / FSG
3110 / 31 — Bearings, Antifriction, Unmounted
Manufacturer
New Hampshire Ball Bearings Inc Div Astro Division
Status
ACTIVE
Surface Treatment Document and Classification
QQ-C-320,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OUTER RING
Surface Finish
GROUND
Style Designator
INNER RING, BALL
Material Document and Classification
SAE53100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Overall Outside Diameter
1.7940 INCHES MINIMUM AND 1.7950 INCHES MAXIMUM IN
Bore Shape
STRAIGHT
Surface Treatment
CHROMIUM OUTER RING
Bore Diameter
1.2495 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
Other items in FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937
BEARING,ROLLER,NEEDLE
3110-00-001-1937
BEARING,ROLLER,NEEDLE
3110-00-001-1937
BEARING,ROLLER,NEEDLE
3110-00-001-1938
BEARING,BALL,AIRFRAME
3110-00-001-4661
CONE AND ROLLERS,TAPERED ROLLER
3110-00-001-4662
CUP,TAPERED ROLLER BEARING
3110-00-001-4689
BEARING,BALL,ANNULAR
3110-00-001-4722
BEARING,BALL,ANNULAR
Frequently Asked Questions
What is NSN 3110-01-306-9620?
NSN 3110-01-306-9620 is a Ring,bearing,inner, manufactured by New Hampshire Ball Bearings Inc Div Astro Division, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
What part numbers are listed for NSN 3110-01-306-9620?
NSN 3110-01-306-9620 has 2 manufacturer part numbers on file: AIR 20-7 (New Hampshire Ball Bearings Inc Div Astro Division), GB528A1 (Northrop Grumman Systems Corporation).
What are the specifications of AIR 20-7?
Key specifications for AIR 20-7: Surface Treatment Document and Classification: QQ-C-320,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OUTER RING; Surface Finish: GROUND; Style Designator: INNER RING, BALL; Material Document and Classification: SAE53100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 9 specifications are documented in the U.S. Government catalog.
Is NSN 3110-01-306-9620 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.