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5547851 — CAP,TUBE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5547851: CAP,TUBE.

The CAP,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, special_features: HOLE ON SIDE 0.164-32 UNC-2B, style_designator: CAP, TUBE, FLARELESS, surface_treatment: ANODIZE OVERALL, tube_outside_diameter_for_which_designed: 1.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-127-4555, 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
5547851
NSN: 5310-00-127-4555
NIINs: 001274555, 013479325
FSC: 5310 — Nuts and Washers
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
special_featuresHOLE ON SIDE 0.164-32 UNC-2B
style_designatorCAP, TUBE, FLARELESS
surface_treatmentANODIZE OVERALL
tube_outside_diameter_for_which_designed1.500 INCHES NOMINAL IN
NSN5310-00-127-4555
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5547851 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD SERIES: UNF
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
THREAD DIRECTION: LEFT-HAND
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
THREAD CLASS: 2B
•
THREAD QUANTITY PER INCH: 24
TECHNICAL CHARACTERISTICS
THREAD SERIESUNF
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
THREAD DIRECTIONLEFT-HAND
NOMINAL THREAD SIZE0.312 INCHES IN
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS2B
THREAD QUANTITY PER INCH24
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5547851?
5547851 is a CAP,TUBE.
What is the NSN for 5547851?
5547851 is cataloged in the U.S. Government catalog under NSN 5310-00-127-4555. 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.