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6155995 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6155995: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1045 OR STEEL COMP 1137 OVERALL, nut_style: ROUND, nut_diameter: 1.640 INCHES MINIMUM AND 1.645 INCHES MAXIMUM IN, nut_thickness: 0.350 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN, thread_series: UN, hardness_rating: 16.0 ROCKWELL C MINIMUM AND 27.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-615-5995, 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
6155995
NSN: 5310-00-615-5995
FSC: 5310 — Nuts and Washers
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialSTEEL COMP 1045 OR STEEL COMP 1137 OVERALL
nut_styleROUND
nut_diameter1.640 INCHES MINIMUM AND 1.645 INCHES MAXIMUM IN
nut_thickness0.350 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
thread_seriesUN
hardness_rating16.0 ROCKWELL C MINIMUM AND 27.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
drive_point_depth0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
drive_point_width0.400 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
surface_treatmentOXIDE OVERALL
nominal_thread_size1.000 INCHES IN
drive_point_quantity2
NSN5310-00-615-5995
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6155995 · 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: UN
•
HARDNESS RATING: 16.0 ROCKWELL C MINIMUM AND 27.0 ROCKWELL C MAXIMUM
•
THREAD PITCH DIAMETERS: +0.9852 TO 0.9888 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-637 FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
DRIVE POINT WIDTH: 0.400 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.000 INCHES IN
•
NUT DIAMETER: 1.640 INCHES MINIMUM AND 1.645 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUN
HARDNESS RATING16.0 ROCKWELL C MINIMUM AND 27.0 ROCKWELL C MAXIMUM
THREAD PITCH DIAMETERS+0.9852 TO 0.9888 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-637 FED SPEC 2ND MATERIAL RESPONSE OVERALL
DRIVE POINT WIDTH0.400 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.000 INCHES IN
NUT DIAMETER1.640 INCHES MINIMUM AND 1.645 INCHES MAXIMUM IN
DRIVE POINT DEPTH0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
NUT THICKNESS0.350 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
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 6155995?
6155995 is a NUT,PLAIN,ROUND.
What is the NSN for 6155995?
6155995 is cataloged in the U.S. Government catalog under NSN 5310-00-615-5995. 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.