Machine Bolt P/N AN4H6A

Specifications

Surface treatment document and classification

Overall Fed Spec All Treatment Responses QQ--416,Tye 2,Class 3

Material

Overall Steel Comp 4037 or Steel Comp 4130 or Steel Comp 8630 or Steel Comp 8735 or Steel Comp 8740 or Steel Comp 4140

Features provided

Finished Head

Thread quantity per inch

28

Minimum tensile strength

Pounds Per Square Inch 125000

Hardness rating

Overall Rockwell C Minimum 26.0 and Rockwell C Maximum 32.0

Thread class

3A

Thread direction

Right-Hand

Hole diameter

0.046 in (nominal)

Surface treatment

Overall Cadmium and Chromate

Fastener length

0.781 in (nominal)

Head height

0.140–0.172 in

Thread length

0.469 in minimum

Thread series designator

UNF

Nominal thread diameter

Inches 0.250

Grip length

0.312 in (nominal)

Hole quantity

1

Hole type

Drilled

Material document and classification

Overall MIL Spec All Material Responses -IL-B-6812

Width between flats

0.428–0.440 in

From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.

Cross-reference part numbers

AN4H6A 8170036 NASM3 THRU NASM20-AN4H6A 116313

Also referenced as

145-540-91506 AN4HGA

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual. They find the item; confirm the current part number when you order.

Shown for identification only. SECO can quote against any of these numbers.

Logistics data

Source of supply	SMS DLA Land and Maritime, Columbus, Ohio
Acquisition advice code	Z Insurance/numeric stockage objective — held by the government as insurance stock for contingencies, not for routine issue. SECO has 100 on the shelf
Unit of issue	HD hundred
Demilitarization code	A Demilitarization not required — non-munitions-list item
Controlled inventory code	U Unclassified
Hazardous material indicator	N No hazardous material

Source: public FLIS/PUB LOG cataloging data.

Why buy from SECO

These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.

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FAQ

What is NSN 5306-00-182-2017?
NSN 5306-00-182-2017 (5306001822017) — Machine Bolt: SECO Parts has 100 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for machine bolt in federal supply class 5306 (Bolts).

Is NSN 5306-00-182-2017 available?
SECO Parts has 100 in stock in Augusta, GA — order or request a quote below.

How much does NSN 5306-00-182-2017 cost?
SECO quotes NSN 5306-00-182-2017 on request, usually the same business day.

What part numbers cross-reference to NSN 5306-00-182-2017?
Part numbers that cross-reference this NSN include AN4H6A, 8170036, NASM3 THRU NASM20-AN4H6A, 116313. It is also referenced by older, superseded or advisory numbers: 145-540-91506, AN4HGA. SECO can quote against any of them.