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A-999-1 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

A-999-1: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, special_features: 0.250 IN. THK X 0.750 IN.

H;W/2 EARS TAB,0.375 IN. DIA HOLE IN, pump_design_control_activity: 19548. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-241-2852, 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
A-999-1
NSN: 3120-01-241-2852
NIINs: 012412852, 013030077
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 28199 — L3 TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY
special_features0.250 IN. THK X 0.750 IN. H;W/2 EARS TAB,0.375 IN. DIA HOLE IN
pump_design_control_activity19548
NSN3120-01-241-2852
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: A-999-1 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
10-1514 PIECE 61Reference document
Same NSN cross-reference
Reference document — Secondary reference
S6505-3257033 PIECE 61Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A-999-1?
A-999-1 is a BUSHING,SLEEVE.
What parts can replace A-999-1?
There are 2 known substitutes for A-999-1: 10-1514 PIECE 61, S6505-3257033 PIECE 61. Substitute compatibility should be verified for your specific system.
What is the NSN for A-999-1?
A-999-1 is cataloged in the U.S. Government catalog under NSN 3120-01-241-2852. 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.