A51M20551-19 — PIN,STRAIGHT,HEADED

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

A51M20551-19: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.047 INCHES NOMINAL IN, diameter: 0.123 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN, material: STEEL COMP 630 OVERALL, head_style: PAN NO. 2 (R1 NOT REQUIRED IN ITEM DESCRIPTION), surface_finish: 32.0 MICROINCHES OUTSIDE DIAMETER, hardness_rating: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL.

This part is cataloged in the U.S. Government catalog under NSN 5315-00-003-3922, 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

A51M20551-19

NSN: 5315-00-003-3922
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)

SPECIFICATIONS

height	0.047 INCHES NOMINAL IN
diameter	0.123 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
material	STEEL COMP 630 OVERALL
head_style	PAN NO. 2 (R1 NOT REQUIRED IN ITEM DESCRIPTION)
surface_finish	32.0 MICROINCHES OUTSIDE DIAMETER
hardness_rating	38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
style_designator	STRAIGHT
pin_head_diameter	0.188 INCHES NOMINAL IN
surface_treatment	PASSIVATE OVERALL
under_head_length	0.489 INCHES NOMINAL IN
first_hole_diameter	0.042 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
hole_arrangement_style	ONE END DRILLED
NSN	5315-00-003-3922

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES OUTSIDE DIAMETER

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

HOLE ARRANGEMENT STYLE: ONE END DRILLED

•

UNDER HEAD LENGTH: 0.489 INCHES NOMINAL IN

•

FIRST HOLE DIAMETER: 0.042 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN

•

HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL

•

STYLE DESIGNATOR: STRAIGHT

•

PIN HEAD DIAMETER: 0.188 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES OUTSIDE DIAMETER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HOLE ARRANGEMENT STYLE	ONE END DRILLED
UNDER HEAD LENGTH	0.489 INCHES NOMINAL IN
FIRST HOLE DIAMETER	0.042 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
HARDNESS RATING	38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATOR	STRAIGHT
PIN HEAD DIAMETER	0.188 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5643 FSCM 81343 MFR REF SINGLE MATERIAL RESPONSE OVERALL
DIAMETER	0.123 INCHES MINIMUM AND 0.124 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.

5315-00-001-5341 5315-00-001-5342 5315-00-003-3357 5315-00-005-0493 5315-00-005-0494 5315-00-006-5178 5315-00-009-0013 5315-00-009-5722

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is A51M20551-19?

A51M20551-19 is a PIN,STRAIGHT,HEADED.

What is the NSN for A51M20551-19?

A51M20551-19 is cataloged in the U.S. Government catalog under NSN 5315-00-003-3922. This indicates validated use in U.S. government and defense supply chains.

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