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73101-1 — SEAL ASSEMBLY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

73101-1: SEAL ASSEMBLY.

The SEAL ASSEMBLY is a the manufacturer industrial component. Key specifications include height: 0.157 INCHES NOMINAL IN, diameter: 0.4995 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN, material: STEEL COMP 1137 OR STEEL COMP 1138 OR STEEL COMP 1139 OR STEEL COMP 1140 OR STEEL COMP 1141 OVERALL, head_style: FLAT CHAMFER, undercut_width: 0.125 INCHES NOMINAL IN, first_end_style: SQUARE. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-210-0676, 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
73101-1
NSN: 5315-00-210-0676
NIINs: 002100676, 014785190
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
height0.157 INCHES NOMINAL IN
diameter0.4995 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN
materialSTEEL COMP 1137 OR STEEL COMP 1138 OR STEEL COMP 1139 OR STEEL COMP 1140 OR STEEL COMP 1141 OVERALL
head_styleFLAT CHAMFER
undercut_width0.125 INCHES NOMINAL IN
first_end_styleSQUARE
hardness_rating40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
style_designatorGROOVE
pin_head_diameter0.605 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN
under_head_length1.093 INCHES NOMINAL IN
undercut_diameter0.480 INCHES NOMINAL IN
NSN5315-00-210-0676
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 73101-1 · 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
•
UNDERCUT WIDTH: 0.125 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.480 INCHES NOMINAL IN
•
UNDER HEAD LENGTH: 1.093 INCHES NOMINAL IN
•
FIRST END STYLE: SQUARE
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: GROOVE
•
PIN HEAD DIAMETER: 0.605 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN
•
DIAMETER: 0.4995 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
UNDERCUT WIDTH0.125 INCHES NOMINAL IN
UNDERCUT DIAMETER0.480 INCHES NOMINAL IN
UNDER HEAD LENGTH1.093 INCHES NOMINAL IN
FIRST END STYLESQUARE
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORGROOVE
PIN HEAD DIAMETER0.605 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN
DIAMETER0.4995 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN
HEAD STYLEFLAT CHAMFER
HEIGHT0.157 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
731011PC3Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 73101-1?
73101-1 is a SEAL ASSEMBLY.
What parts can replace 73101-1?
There is 1 known substitute for 73101-1: 731011PC3. Substitute compatibility should be verified for your specific system.
What is the NSN for 73101-1?
73101-1 is cataloged in the U.S. Government catalog under NSN 5315-00-210-0676. 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.