PartsTable
Technical Data Sheet
Download PDF

156621 — 156621

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

156621: 156621.

The 156621 is a the manufacturer industrial component. Key specifications include FSC APPLICATION DATA: TELETYPE AND FACSIMILE EQUIPMENT. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-393-7738, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ 156621
NSN: 3120-00-393-7738
NIINs: 003937738, 007672298
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
FSC APPLICATION DATATELETYPE AND FACSIMILE EQUIPMENT
NSN3120-00-393-7738
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 156621 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CORNER SHAPE: CHAMFERED INSIDE LEFT CORNER
•
FLANGE OUTSIDE DIAMETER: 5.3700 INCHES MINIMUM AND 5.3900 INCHES MAXIMUM IN
•
PRECIOUS MATERIAL: SILVER
TECHNICAL CHARACTERISTICS
CORNER SHAPECHAMFERED INSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPECHAMFERED INSIDE RIGHT CORNER
CORNER SHAPECHAMFERED OUTSIDE RIGHT CORNER
FLANGE OUTSIDE DIAMETER5.3700 INCHES MINIMUM AND 5.3900 INCHES MAXIMUM IN
PRECIOUS MATERIALSILVER
BODY OUTSIDE DIAMETER4.8655 INCHES MINIMUM AND 4.8675 INCHES MAXIMUM IN
HARDNESS RATING34.0 ROCKWELL C NOMINAL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
AS156621Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 156621?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 156621?
156621 is a 156621. It is classified as a MRO (MRO_GENERAL).
What parts can replace 156621?
There is 1 known substitute for 156621: AS156621. Substitute compatibility should be verified for your specific system.
What is the NSN for 156621?
156621 is cataloged in the U.S. Government catalog under NSN 3120-00-393-7738. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 156621

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.