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661611-5 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

661611-5: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN, diameter: 0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN, material: STEEL COMP 630 OVERALL, head_style: FLAT, chamfer_length: 0.005 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN, hardness_rating: 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-779-3894, 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
661611-5
NSN: 5315-00-779-3894
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
height0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
diameter0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
materialSTEEL COMP 630 OVERALL
head_styleFLAT
chamfer_length0.005 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
hardness_rating39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSTRAIGHT
pin_chamfer_angle43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM
pin_head_diameter0.180 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
under_head_length0.760 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
material_document_and_classificationAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-779-3894
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 661611-5 · 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
•
CHAMFER LENGTH: 0.005 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
•
UNDER HEAD LENGTH: 0.760 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
•
PIN CHAMFER ANGLE: 43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM
•
HARDNESS RATING: 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.180 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CHAMFER LENGTH0.005 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
UNDER HEAD LENGTH0.760 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
PIN CHAMFER ANGLE43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.180 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
HEAD STYLEFLAT
HEIGHT0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM 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 661611-5?
661611-5 is a PIN,STRAIGHT,HEADED.
What is the NSN for 661611-5?
661611-5 is cataloged in the U.S. Government catalog under NSN 5315-00-779-3894. 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.