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139021 — ARBOR,HOLE SAW

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

139021: ARBOR,HOLE SAW.

The ARBOR,HOLE SAW is a the manufacturer industrial component. Key specifications include shank_shape: HEXAGON, special_features: 5/8-18 THREADS, width_across_flats: 0.375 INCHES NOMINAL IN, end_item_identification: VSECK, saw_size_range_accommodated: +1.250 TO 6.000 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-438-7162, 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
139021
NSN: 5310-00-438-7162
NIINs: 004387162, 007398067, 016717555
FSC: 5310 — Nuts and Washers
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
shank_shapeHEXAGON
special_features5/8-18 THREADS
width_across_flats0.375 INCHES NOMINAL IN
end_item_identificationVSECK
saw_size_range_accommodated+1.250 TO 6.000 INCHES IN
NSN5310-00-438-7162
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 139021 · 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
•
SURFACE FINISH: 40.0 MICROINCHES INNER
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SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
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SHOULDER HEIGHT: 0.036 INCHES NOMINAL IN
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STYLE DESIGNATOR: SHOULDERED AND RECESSED
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MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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OUTSIDE DIAMETER: 0.562 INCHES NOMINAL IN
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MATERIAL THICKNESS: 0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.235 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH40.0 MICROINCHES INNER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER HEIGHT0.036 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDERED AND RECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.562 INCHES NOMINAL IN
MATERIAL THICKNESS0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
SHOULDER DIAMETER0.235 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
RECESS DIAMETER0.202 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE OVERALL
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 139021?
139021 is a ARBOR,HOLE SAW.
What is the NSN for 139021?
139021 is cataloged in the U.S. Government catalog under NSN 5310-00-438-7162. 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.