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7R48 — PIN,GROOVED,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7R48: PIN,GROOVED,HEADED.

The PIN,GROOVED,HEADED is a the manufacturer industrial component. Key specifications include height: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, diameter: 0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, material: STEEL OVERALL, head_style: FLAT CHAMFER, undercut_width: 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN, first_end_style: CHAMFERED. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-169-0761, 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
7R48
NSN: 5315-00-169-0761
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: K3743 — BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED (GBR)
SPECIFICATIONS
height0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
diameter0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
materialSTEEL OVERALL
head_styleFLAT CHAMFER
undercut_width0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
first_end_styleCHAMFERED
effective_length1.420 INCHES NOMINAL IN
style_designatorGROOVE
pin_head_diameter0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
surface_treatmentPHOSPHATE OVERALL
under_head_length1.680 INCHES MINIMUM AND 1.700 INCHES MAXIMUM IN
undercut_diameter0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
NSN5315-00-169-0761
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7R48 · 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: 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
•
FIRST END TAPER LENGTH: 0.020 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: DEF 29,CL 1,K3339 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
UNDER HEAD LENGTH: 1.680 INCHES MINIMUM AND 1.700 INCHES MAXIMUM IN
•
FIRST END STYLE: CHAMFERED
•
STYLE DESIGNATOR: GROOVE
•
PIN HEAD DIAMETER: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
UNDERCUT WIDTH0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
FIRST END TAPER LENGTH0.020 INCHES NOMINAL IN
UNDERCUT DIAMETER0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDEF 29,CL 1,K3339 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
UNDER HEAD LENGTH1.680 INCHES MINIMUM AND 1.700 INCHES MAXIMUM IN
FIRST END STYLECHAMFERED
STYLE DESIGNATORGROOVE
PIN HEAD DIAMETER0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONBS 970,EN36B,K3339 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.308 INCHES MINIMUM AND 0.310 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 1
7R9640844Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7R48?
7R48 is a PIN,GROOVED,HEADED.
What parts can replace 7R48?
There is 1 known substitute for 7R48: 7R9640844. Substitute compatibility should be verified for your specific system.
What is the NSN for 7R48?
7R48 is cataloged in the U.S. Government catalog under NSN 5315-00-169-0761. 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.