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77MBA1 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

77MBA1: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.094 INCHES NOMINAL IN, diameter: 0.311 INCHES NOMINAL IN, material: STEEL OVERALL, head_style: SQUARE, style_designator: STRAIGHT, under_head_length: 0.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-936-2203, 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
77MBA1
NSN: 5315-00-936-2203
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 556A6 — LINDE MATERIAL HANDLING NORTH AMERICA CORPORATION (USA)
SPECIFICATIONS
height0.094 INCHES NOMINAL IN
diameter0.311 INCHES NOMINAL IN
materialSTEEL OVERALL
head_styleSQUARE
style_designatorSTRAIGHT
under_head_length0.750 INCHES NOMINAL IN
width_across_flats0.438 INCHES NOMINAL IN
first_hole_diameter0.101 INCHES NOMINAL IN
hole_arrangement_styleONE END DRILLED
distance_from_centerline_of_hole_to_end_of_pin0.125 INCHES NOMINAL IN
NSN5315-00-936-2203
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 77MBA1 · 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
•
WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
UNDER HEAD LENGTH: 0.750 INCHES NOMINAL IN
•
FIRST HOLE DIAMETER: 0.101 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT
•
DIAMETER: 0.311 INCHES NOMINAL IN
•
HEAD STYLE: SQUARE
•
HEIGHT: 0.094 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEONE END DRILLED
UNDER HEAD LENGTH0.750 INCHES NOMINAL IN
FIRST HOLE DIAMETER0.101 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT
DIAMETER0.311 INCHES NOMINAL IN
HEAD STYLESQUARE
HEIGHT0.094 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN0.125 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
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 77MBA1?
77MBA1 is a PIN,STRAIGHT,HEADED.
What is the NSN for 77MBA1?
77MBA1 is cataloged in the U.S. Government catalog under NSN 5315-00-936-2203. 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.