NOT MEASUREMENT
SENSITIVE
MIL-DTL-16232G
7 January 2000____
SUPERSEDING
DOD-P-16232F
7 November 1978
DETAIL SPECIFICATION
PHOSPHATE COATING, HEAVY, MANGANESE OR ZINC BASE
This specification is approved for use by all Departments and Agencies of the Department of
Defense.
1. SCOPE
1.1 Scope. This specification covers two types of heavy phosphate coating for ferrous
metals, applied by immersion. The coatings consist of a manganese phosphate or zinc
phosphate base and, when specified, a supplementary treatment (see 6.1).
1.2 Classification. Coatings are of the following types and classes, as specified (see 6.2):
Type M
Manganese Phosphate Base
Class 1
Supplementary preservative treatment or coating, as
specified
Class 2
Supplementary treatment with lubricating oil conforming to
MIL-PRF-16173, Grade 3 or MIL-PRF-3150
Class 3
No supplementary treatment
Class 4
Chemically converted (may be dyed to color as specified)
With no supplementary coating or coating as specified
Type Z
Zinc phosphate base
Class 1
Supplementary preservative treatment or coating, as
specified
Class 2
Supplementary treatment with preservative conforming to
MIL-PRF-16173, Grade 3 or MIL-PRF-3150
Class 3
No supplementary treatment
Class 4
Chemically converted (may be dyed to color as specified)
With no supplementary coating or coating as specified
Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in
improving this document should be addressed to: Commander, U S Army Armament Research, Development, and
Engineering Center, ATTN: AMSTA-AR-QAW-E, Picatinny Arsenal, NJ 07806-5000 using the self-addressed
Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by
letter.
AMSC/NA
AREA MFFP
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business