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549251 — CARRIER BEARING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

549251: CARRIER BEARING.

The CARRIER BEARING is a the manufacturer industrial component. Key specifications include fsc_application_data: HYDRAULIC SYSTEM,ACFT. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-641-1613, 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
549251
NSN: 5325-00-641-1613
NIINs: 006411613, 007831099
FSC: 5325 — Fastening Devices
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
fsc_application_dataHYDRAULIC SYSTEM,ACFT
general_characteristics_item_descriptionSTEEL,MIL&T&6736,4130,HEAT TREAT RC 28-34,MIL&H&6875,1.951 IN.MIN 1.952 IN. MAX OD,1.620 IN. MIN 1.630 IN. MAX ID,0.750 IN. MIN 0.770IN. MAX H IN
NSN5325-00-641-1613
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 549251 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FLANGE OUTSIDE DIAMETER: 0.858 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
•
WASHER STYLE: SINGLE ROW TOOTHED W/ FLANGE
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COLOR: BLACK OVERALL
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SURFACE TREATMENT: ENAMEL OVERALL
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BARREL OUTSIDE DIAMETER: 0.463 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
FLANGE STYLE: FLANGE
•
BARREL STYLE: STRAIGHT ROUND TYPE
TECHNICAL CHARACTERISTICS
FLANGE OUTSIDE DIAMETER0.858 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
WASHER STYLESINGLE ROW TOOTHED W/ FLANGE
COLORBLACK OVERALL
SURFACE TREATMENTENAMEL OVERALL
BARREL OUTSIDE DIAMETER0.463 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
FLANGE STYLEFLANGE
BARREL STYLESTRAIGHT ROUND TYPE
BARREL HEIGHT0.223 INCHES MINIMUM AND 0.287 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 549251?
549251 is a CARRIER BEARING.
What is the NSN for 549251?
549251 is cataloged in the U.S. Government catalog under NSN 5325-00-641-1613. 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.