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PartsTable / COMPONENT / H7548
H7548 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.2500 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM IN, material: STEEL OVERALL, overall_length: 1.271 INCHES MINIMUM AND 1.291 INCHES MAXIMUM IN, undercut_width: 0.032 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN, first_end_style: CHAMFERED, hardness_rating: 66.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 69.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-200-2868, 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
H7548
NSN: 5315-00-200-2868
FSC: 5315
CAGE: 77260 — PIERCE CO INC THE SUB OF AVIS INDUSTRIAL CORP (USA)
SPECIFICATIONS
diameter0.2500 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM IN
materialSTEEL OVERALL
overall_length1.271 INCHES MINIMUM AND 1.291 INCHES MAXIMUM IN
undercut_width0.032 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
first_end_styleCHAMFERED
hardness_rating66.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 69.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
undercut_radius0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
effective_length1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN
style_designatorGROOVE
features_providedCASEHARDENED
undercut_diameter0.2000 INCHES MINIMUM AND 0.2070 INCHES MAXIMUM IN
first_end_locationBOTH ENDS
NSN5315-00-200-2868
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: H7548 · 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
•
FIRST END LOCATION: BOTH ENDS
•
FIRST END TAPER ANGLE: 45.0 DEGREES NOMINAL
•
HARDNESS RATING: 66.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 69.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
•
UNDERCUT DIAMETER: 0.2000 INCHES MINIMUM AND 0.2070 INCHES MAXIMUM IN
•
UNDERCUT WIDTH: 0.032 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: GROOVE
•
EFFECTIVE LENGTH: 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END LOCATIONBOTH ENDS
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
HARDNESS RATING66.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 69.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
UNDERCUT DIAMETER0.2000 INCHES MINIMUM AND 0.2070 INCHES MAXIMUM IN
UNDERCUT WIDTH0.032 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
STYLE DESIGNATORGROOVE
EFFECTIVE LENGTH1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
FEATURES PROVIDEDCASEHARDENED
UNDERCUT RADIUS0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
49032Interchangeable
interchangeable cross-reference
interchangeable
B70026Interchangeable
interchangeable cross-reference
interchangeable
121593Interchangeable
interchangeable cross-reference
interchangeable
4T8884Interchangeable
interchangeable cross-reference
interchangeable
8884Interchangeable
interchangeable cross-reference
interchangeable
E13Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H7548?
H7548 is a PIN,GROOVED,HEADLESS.
What parts can replace H7548?
There are 16 known substitutes for H7548: 49032, B70026, 121593 and 13 more. Substitute compatibility should be verified for your specific system.
Is H7548 still available?
H7548 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026