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R.2.555 — RESISTOR,FIXED,COMPOSITION

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

R.2.555: RESISTOR,FIXED,COMPOSITION.

The RESISTOR,FIXED,COMPOSITION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, body_width: 0.500 INCHES MAXIMUM IN, head_style: HEADLESS (SETSCREW), body_height: 0.470 INCHES MAXIMUM IN, body_length: 0.250 INCHES NOMINAL IN, point_style: OVAL. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-061-1997, 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
MRO→ MRO_GENERAL→ R.2.555
NSN: 5305-00-061-1997
NIINs: 000611997, 004395337, 010094425
FSC: 5305 — Screws
CAGE: 82205 — BELFORT INSTRUMENT COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
body_width0.500 INCHES MAXIMUM IN
head_styleHEADLESS (SETSCREW)
body_height0.470 INCHES MAXIMUM IN
body_length0.250 INCHES NOMINAL IN
point_styleOVAL
thread_class2A A
body_diameter0.090 INCHES NOMINAL IN
cubic_measure0.361 CUBIC INCHES
terminal_typeWIRE LEAD
thread_length0.727 INCHES MAXIMUM IN
inclosure_typeENCAPSULATED
NSN5305-00-061-1997
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: R.2.555 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FASTENER LENGTH: 1.625 INCHES NOMINAL IN
•
THREAD LENGTH: 0.727 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.125 INCHES IN
•
HEAD STYLE: HEADLESS (SETSCREW)
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: OVAL
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.625 INCHES NOMINAL IN
THREAD LENGTH0.727 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.125 INCHES IN
HEAD STYLEHEADLESS (SETSCREW)
THREAD DIRECTIONRIGHT-HAND
POINT STYLEOVAL
INTERNAL DRIVE STYLESLOT
THREAD CLASS2A A
THREAD QUANTITY PER INCH40
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 R.2.555?
R.2.555 is a RESISTOR,FIXED,COMPOSITION. It is classified as a MRO (MRO_GENERAL).
What is the NSN for R.2.555?
R.2.555 is cataloged in the U.S. Government catalog under NSN 5305-00-061-1997. 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.