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B-3129 — B-3129

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

B-3129: B-3129.

The B-3129 is a the manufacturer industrial component. Key specifications include special_features: ENZYMATIC DIGEST CASEIN,SOYBEAN MEAL,SODIUM CHLORIDE, end_item_identification: 16 INCH CYLINDER IRONER IN, general_characteristics_item_description: BRONZE, part_name_assigned_by_controlling_agency: BLOOD AGAR. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-147-4017, 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→ B-3129
NSN: 3120-00-147-4017
NIINs: 001474017, 015711828, 016759034
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 20328 — ELLIS CORP (USA)
SPECIFICATIONS
special_featuresENZYMATIC DIGEST CASEIN,SOYBEAN MEAL,SODIUM CHLORIDE
end_item_identification16 INCH CYLINDER IRONER IN
general_characteristics_item_descriptionBRONZE
part_name_assigned_by_controlling_agencyBLOOD AGAR
NSN3120-00-147-4017
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: B-3129 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: BRONZE
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRONZE
END ITEM IDENTIFICATION16 INCH CYLINDER IRONER IN
SUBSTITUTES & CROSS-REFERENCES 1
B3137-1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B-3129?
B-3129 is a B-3129. It is classified as a MRO (MRO_GENERAL).
What parts can replace B-3129?
There is 1 known substitute for B-3129: B3137-1. Substitute compatibility should be verified for your specific system.
What is the NSN for B-3129?
B-3129 is cataloged in the U.S. Government catalog under NSN 3120-00-147-4017. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.